Changeset 140 in t29-www for en/communication
- Timestamp:
- Jan 10, 2010, 6:05:19 AM (14 years ago)
- Location:
- en/communication
- Files:
-
- 1 deleted
- 5 edited
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- Unmodified
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- Removed
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en/communication/broadcasting.shtm
r138 r140 15 15 <meta name="keywords" lang="de" content="Rundfunk, Signalbau Huth, E 72, Telefunken W9, Körting Ultramar, Telefunken 650, Kofferempfänger, Metz" /> 16 16 <meta name="keywords" lang="en" content="Broadcasting, broadcast devices, museum, Signalbau Huth, Telefunken W9, Körtng Ultramar, Telefunken 650, Metz" /> 17 <meta name="DC.Title" content="technikum29 - <!--#echo var="title" -->" />18 17 <meta name="t29.SVN" content="$Id$" /> 19 <meta name="t29.germanoriginal" content="v5.8.x/10.2008" />20 <meta name="t29.thistranslation" content="v5.8.x+1/12.10.2008" />21 <meta name="t92.comment" content="New: Telefunken 650 GK" />22 <!--changelog: 19.04.2006/v5.5.BETA - last edit own translation -->23 <!--changelog: 10.08.2006/v5.5.7 - new translation (Ulmann) -->24 <!--changelog: 19.08.2007/v5.7.5 - new translation, new structure [v5.7 grundlegende Änderungen, weitgehend gleicher Text] -->25 <!--changelog: 21.03.2008/v5.7.20 based on 03.02.2008/v5.7.17: Neuer Auschnitt Rundfunkecke (Text angepasst, neues Bild) -->26 18 </head> 27 19 <body> … … 30 22 <h2><!--#echo var="title" --></h2> 31 23 32 <div class="box center ">24 <div class="box center auto-bildbreite"> 33 25 <img src="/shared/photos/kommunikationstechnik/neuer-ausschnitt-rundfunkecke.jpg" alt="Photography from the museum: A partial view of the broadcasting corner" width="594" height="418" /> 34 <p class="bildtext -bildbreite" style="width:594px;">26 <p class="bildtext"> 35 27 Some of the broadcast devices in the exhibition – from left to right: 36 28 the twenties, early thirties, mid-thirties, late thirties, … … 38 30 </p> 39 31 </div> 40 41 <!--<div class="box left"> 42 <img src="/shared/photos/kommunikationstechnik/ausschnitt-rundfunkecke.jpg" alt="Partial view of the broadcasting corner" height="297" width="396" class="nomargin-bottom" /> 43 <div class="bildtext" style="padding-top: 127px;">Some of the broadcast 44 devices in the exhibition – shown are mostly receivers from the 45 1920s and 1930s.</div> 46 <div class="clear"> </div> 47 </div>--> 48 32 33 <p>Broadcasting was launched in Germany in 1923, being the third country in 34 the world (right after the USA (1921) and Great Britain (1922)). From the 35 technical point, it even would have been possible to launch large-scale 36 broadcasting in 1920.</p> 37 38 <!-- Absatz mit dem amtlich anerkannten Firmen (RTV-Stempel) 39 => Weglassen laut Heriberts Direktive (Januar 2010) --> 40 41 <div class="box center auto-bildbreite"> 42 <img src="/shared/photos/kommunikationstechnik/seibt-edr16.jpg" width="600" height="383" alt="Seibt detector EDR 16" /> 43 <p class="bildtext"> 44 <b>Seibt EDR 16</b> 45 </p> 46 </div> 47 48 <p>Detectors are passive tuners which are powered straight from the electromagnetic 49 wave which is recieved via a very big antenna. Therefore there was only a 50 headphones plug and no loudspeakers at all. To adjust the device, the user had 51 to poke with a small needle on a crystal, having only a small chance to recieve 52 a powerful broadcast station. The crystal was a small 5 mm galena or pyrite 53 unit with physical characteristics of a diode at some special configurations. 54 If the user found such a configuration, the crystal served as rectifier. 55 In the early 1920s, this setup was a cheap alternative to the expansive radio sets. 56 At the right hand in the picture you can see a typical manual to instruct 57 the user into early radio technology.</p> 58 59 <p>It is astonishing to see the incredible speed of the development of broadcasting 60 systems. Beginning with very simple devices like the one above, using crystals 61 for demulation, the technology became mature very quickly. This process took 62 no more than 15 years from the first steps to near perfection. 63 This development is reflected in the apperance of the devices as well. While 64 the first recievers were of a very technical design, later devices turned into 65 wonderful pieces of furniture, fitting neatly into the average upper class 66 household. We have illustrated this page with examples from both types of 67 devices.</p> 68 69 <!-- old version --> 70 <!-- 49 71 <p>It is astonishing to see the incredible pace at which the development of 50 72 broadcasting systems took place. Beginning with very simple devices using … … 63 85 museum which contains about 150 different receivers. 64 86 </p> 65 87 --> 88 89 <!-- Very old version --> 66 90 <!-- 67 <p>The short time between the moderate launch of broadcasting in the early 1920s and its perfection is amazing. The era of broadcasting began in Germany in 1923, at first with very limited reception quality. 15 years later the quality of reception was almost perfect. At the beginning the apparatures had a very technical design (exactly like today), but since the 30s the radio apparatures changed to partially attractive pieces of furniture. Chosen examples from the museum-holding (150 pieces) for both kinds are shown on this page.</p> 68 --> 69 70 <div class="box center"> 71 <img src="/shared/photos/kommunikationstechnik/huth.jpg" width="600" height="385" alt="HUTH-Empfänger (HUTH-Receiver)" /> 72 <p class="bildtext">Receiver made by Signalbau Huth (model E72): 73 This is an example of a cheap 74 receiver made in 1928. It was one of the first models which could 75 be connected to the mains thus eliminating the bulky anode batteries 76 requires by previous generations of receivers. 77 The sound quality of this receiver is quite limited and the horn 78 loudspeaker makes for a sound which one would expect from a tin can.</p> 79 </div> 80 91 <p>The short time between the moderate launch of broadcasting in the early 1920s 92 and its perfection is amazing. The era of broadcasting began in Germany in 1923, 93 at first with very limited reception quality. 15 years later the quality of 94 reception was almost perfect. At the beginning the apparatures had a very 95 technical design (exactly like today), but since the 30s the radio apparatures 96 changed to partially attractive pieces of furniture. Chosen examples from the 97 museum-holding (150 pieces) for both kinds are shown on this page.</p> 98 --> 99 100 <div class="box center auto-bildbreite"> 101 <img src="/shared/photos/kommunikationstechnik/saba1927.jpg" width="600" height="451" alt="Photography of the Saba 1927" /> 102 <p class="bildtext"> 103 This is a reciever made by <b>SABA</b> (year of manufacture 1927) with 104 open cover. You can see three inductors and rotary capacitors. Therefore 105 this kind of device is called "three-step-oscillator". The device is 106 decorated with marquetries (not visible in the picture detail) and even 107 the interior is made of veneerd exotic woods. 108 </p> 109 </div> 110 111 <p>In the 1920s, the electric power supply has not been installed all over the 112 country yet, therefore the first broadcasting recievers were made for 113 battery operation. Therefore listening loudly and frequently to the radio 114 was an expensive buiseness, since batteries discharged quickly. 115 <br/>The following devices were ready for the mains supply.</p> 116 117 <div class="box center auto-bildbreite"> 118 <img src="/shared/photos/kommunikationstechnik/huth.jpg" width="600" height="385" alt="HUTH-Empfänger (HUTH-Receiver)" /> 119 <p class="bildtext">Receiver made by <b>Signalbau Huth</b> (model E72): 120 This is an example of a cheap receiver made in 1928. The sound quality 121 is rather bad, especially with that horn loudspeaker, made out of metal. 122 Listening to the radio was sensational, but not luxurious. 123 </p> 124 </div> 125 126 <!-- 81 127 <div class="box left"> 82 128 <img src="/shared/photos/kommunikationstechnik/telefunken_w90.jpg" width="307" height="371" alt="Telefunken W9" class="nomargin-bottom" /> … … 90 136 <div class="clear"> </div> 91 137 </div> 92 93 <p>There have always been devices that have been built very aesthetically. 94 One of these devices is the Telefunken T 40W.</p> 95 96 <div class="box left"> 97 <a href="/en/devices/telefunken_t40w.shtm"><img src="/shared/photos/kommunikationstechnik/telefunken_t40w/klein.jpg" alt="Photography of the Telefunken T40W" class="nomargin-bottom"></a> 98 <p class="bildtext"> 99 Clicking on the picture yields the 100 innards of the <a href="/en/devices/telefunken_t40w.shtm" class="go">Telefunken 101 T 40W</a>. 102 </p> 103 <div class="clear"> </div> 104 </div> 105 106 107 108 <p>The following pictures show some receivers of outstanding design 109 and outstanding technical properties. Apart from these the 110 museum's collection contains a lot of different receivers 111 covering all stages of the development of public radio 112 broadcasting. 113 These receivers include crystal radios, battery powered receivers 114 from the 1920s, a 'Luxus Super' (1930s) as well as the first postwar 115 receiver equipped with motorized search functionality and remote 116 control by cable, the SABA Freiburg 3D. The sound of this receiver 117 is so rich and impressive that even young people are faszinated and 118 admire this 50 year old technical miracle.</p> 119 120 <div class="box left"> 121 <!-- Section new at 12.10.2008 from de --> 122 <img src="/shared/photos/kommunikationstechnik/telefunken,musikschrank.jpg" width="350" height="610" alt="Telefunken radiogramophone" /> 123 <p class="bildtext"> 124 Having intelligent all-in-one furniture suitable for all kinds of music is an old dream 125 which appeared some years after the introducion of mass broadcasting. The radiogramophone 126 on the left is the <b>Telefunken 650 GK</b> from 1931/32. The record player was quite 127 modern, featuring a magnetic system and electric motor. On the other hand it still used 128 gramophone needles and the needlessly weighty pick-up stressed the records. 129 Nevertheless the sound quality of the radiogramophone was much better, compared to an 130 ordinary gramophone player. The chassis is made out of noble walnut trees, therefore 131 this piece of furniture was very expensive. 132 <br />The <a class="go" 133 name="backlink-telefunken" href="/en/devices/telefunken_650.shtm">Telefunken 650</a> 134 is the alternative table-top type and was a very successful export hit. 135 </p> 136 <div class="clear"> </div> 137 </div> 138 139 138 --> 139 140 141 <p>There have always been companies which built very stylish devices. You could 142 already take a look at the Saba device. The Telefunken <b>T 40W</b> is another 143 representative of such a device with a very nice interior. In the following, 144 you can gain an extraordinary insight into this device. 145 146 <div class="box left clear-after"> 147 <a href="/en/devices/telefunken_t40w.shtm"><img src="/shared/photos/kommunikationstechnik/telefunken_t40w/klein.jpg" alt="Photography of the Telefunken T40W" class="nomargin-bottom"></a> 148 <p class="bildtext"> 149 Clicking on the picture yields the innards of the 150 <a href="/en/devices/telefunken_t40w.shtm" class="go">Telefunken T 40W</a>. 151 </p> 152 </div> 153 154 <p>The following pictures show some recievers of outstanding design 155 and outstanding technical features. The picture gallery could be 156 continued with open end. 157 <br/>Many other curiosities can be found in our museum, and there's 158 no epoch without an outstanding audio experience: Detector devices, 159 battery driven recievers (1920s), "Luxus-Super" (1930s), early 160 radiogramophones (1932) and the first postwar recievers with 161 motor-channel search and cable-remote control: SABA Freiburg 3D 162 (1954). This milestone features five built-in speakers, having 163 such an impressing sound that even today's people with all their 164 consumer electronics are faszinated of this 50 years old device. 165 Overall, you can get an impression how broadcasting was experienced 166 two or three generations ago. 167 </p> 168 169 <!-- Alter Text --> 140 170 <!-- 141 <p>The next two pictures show two apparatures that point out themselves optically and also technically, but the picture gallery could be continued without stopping. 142 <br />Many other curiosities can be admired in the museum, an audio experience is possible in every epoch: detectors, batterie-receivers (1920s), "Luxus-Super" (1930s) and at the end the first postwar receivers with motor-channel search and cable-remote control: SABA Freiburg 3D. The sound of this milestone with 5 built-in loudspeakers is so impressing that even CD-spoiled kids would stand wondering in front of this nearly 50-years old apparature. 143 <br />All in all you see how broadcasting was two or three generations ago and how fast the aparatures developed.</p> 144 --> 145 146 <div class="box center"> 147 <img src="/shared/photos/kommunikationstechnik/ultramar3.jpg" width="600" height="533" alt="Körting Ultramar" /> 148 <p class="bildtext"><b>Körting Ultramar</b>: One of the most 171 <p>The following pictures show some receivers of outstanding design 172 and outstanding technical properties. Apart from these the 173 museum's collection contains a lot of different receivers 174 covering all stages of the development of public radio 175 broadcasting. 176 These receivers include crystal radios, battery powered receivers 177 from the 1920s, a 'Luxus Super' (1930s) as well as the first postwar 178 receiver equipped with motorized search functionality and remote 179 control by cable, the SABA Freiburg 3D. The sound of this receiver 180 is so rich and impressive that even young people are faszinated and 181 admire this 50 year old technical miracle.</p> 182 --> 183 184 <!-- ganz alter Text --> 185 <!-- 186 <p>The next two pictures show two apparatures that point out themselves optically 187 and also technically, but the picture gallery could be continued without stopping. 188 <br />Many other curiosities can be admired in the museum, an audio experience 189 is possible in every epoch: detectors, batterie-receivers (1920s), "Luxus-Super" 190 (1930s) and at the end the first postwar receivers with motor-channel search and 191 cable-remote control: SABA Freiburg 3D. The sound of this milestone with 5 built-in 192 loudspeakers is so impressing that even CD-spoiled kids would stand wondering in 193 front of this nearly 50-years old apparature. 194 <br />All in all you see how broadcasting was two or three generations ago and how 195 fast the aparatures developed.</p> 196 --> 197 198 <div class="box center auto-bildbreite"> 199 <img src="/shared/photos/kommunikationstechnik/telefunken650,500.jpg" width="700" height="419" alt="Telefunken 650 and Telefunken 500" /> 200 <p class="bildtext"> 201 <b>Telefunken T650 and T500</b> 202 </p> 203 </div> 204 205 <p>Loudspeakers were integrated into broadcasting devices since about 1932. 206 Furthermore the devices were (of course) still adapted to contemporary 207 style. These Telefunken export devices (T650 and T500) especially stick 208 out. Being built as "super" models (improving recieve quality by generating 209 an intermediate frequency) the technical working was very good. 210 </p> 211 212 <div class="box left clear-after"> 213 <img src="/shared/photos/kommunikationstechnik/telefunken,musikschrank.jpg" width="350" height="610" alt="Telefunken radiogramophone" /> 214 <p class="bildtext"> 215 Having intelligent all-in-one furniture suitable for all kinds of music is an old dream 216 which appeared some years after the introducion of mass broadcasting. The radiogramophone 217 on the left is the <b>Telefunken 650 GK</b> from 1931/32. The record player was quite 218 modern, featuring a magnetic system and electric motor. On the other hand it still used 219 gramophone needles and the needlessly weighty pick-up stressed the records. 220 Nevertheless the sound quality of the radiogramophone was much better, compared to an 221 ordinary gramophone player. The chassis is made out of noble walnut trees, therefore 222 this piece of furniture was very expensive. 223 </p> 224 </div> 225 226 <div class="box center auto-bildbreite"> 227 <img src="/shared/photos/kommunikationstechnik/ultramar3.jpg" width="600" height="533" alt="Körting Ultramar" /> 228 <p class="bildtext"> 229 <b>Körting Ultramar</b>: One of the most 149 230 nobel, most complex and most expensive recievers made in 1935. 150 231 Its circuitry contains 11 vacuum tubes driving two loudspeakers 151 232 which results in an astonishable quality of sound. See also 152 some pictures showing the 153 <a class="go" name="backlink-ultramar" href="/en/devices/ultramar_back.shtm">Innards of the Ultramar</a>. 233 some pictures showing the <a class="go" name="backlink-ultramar" 234 href="/en/devices/ultramar_back.shtm">Innards of the Ultramar</a>. 235 </p> 236 </div> 237 238 <div class="box left clear-after"> 239 <img src="/shared/photos/kommunikationstechnik/metz,koffer.jpg" width="400" height="333" alt="Metz portable reciever" /> 240 <p class="bildtext">The portable reveceiver from Metz, built in 241 1956 and shown on the left, is another outstanding piece of equipment. 242 It is a so called "Kofferradio" (<i>suitcase radio</i>) since it is portable 243 and optionally battery driven, and of course since it is as compact as 244 carry-on-baggage. It even features an integrated recordplayer - forseeing the 245 development of modern multipurpose receiver/CD-player combinations. 246 Of course it still used tubes. Youth would have been able to listen to 247 Elvis Presley at the swiming pool if the device were not as expensive.</p> 154 248 </div> 155 156 <div class="box left">157 <img src="/shared/photos/kommunikationstechnik/metz,koffer.jpg" width="400" height="333"158 alt="Metz portable reciever" class="nomargin-bottom" />159 <p class="bildtext">The portable reveceiver from Metz, built in160 1956 and shown above, is another outstanding piece of equipment.161 It is a so called "Kofferradio" so it can be carried around and162 it features even an integrated recordplayer - forseeing the163 development of modern multipurpose receiver/CD-player combinations</p>164 165 <!--166 A rapid leap in time to the youngest model in the museal collection: The portable receiver from Metz with built-in gramophone. Of course the apparature, built 1956, still uses tubes. Youth would have been able to hear their "Elvis Presley"-records in the swimming pool if the radio were much more cheaper.-->167 <div class="clear"> </div>168 </div>169 170 249 171 250 </div><!-- end of content --> -
en/communication/fax.shtm
r82 r140 15 15 <meta name="keywords" lang="de" content="Faxtechnik, Schreibtechnik, Fernschreiber, Siemens KF108, Hellfax BS 110, Fax¨bertragung, Bildfunkempfänger, Blattschreiber" /> 16 16 <meta name="keywords" lang="en" content="technikum, fax engineering, writing engineering, telegraphy, hellfax, hellschreiber, olympia, flexowriter" /> 17 <meta name="DC.Title" content="technikum29 - <!--#echo var="title" -->" /> 18 <meta name="DC.Subject" content="<!--#echo var="title" -->" /> 19 <meta name="t29.SVN" content="$Id" /> 20 <meta name="t29.germanoriginal" content="22.07.2008/v5.7.23" /> 21 <meta name="t29.thistranslation" content="27.07.2008/v5.7.23" /> 22 <meta name="t29.comment" content="new: Hellschreiber GL, Olympia flexowriter, and some text about teletypes" /> 23 <!--changelog: 26.04.2006/v5.5.1 auf Basis de:13.04.2006/v5.5.1 --> 24 <!--changelog: 24.08.2007/v5.7.5 --> 25 <!--changelog: 15.09.2007/v5.7.8 based on 16.07.2007/v5.7.1: ein wort (astonished) --> 26 <!--changelog: 27.11.2007/v5.7.12 based on 04.11.2007/v5.7.11: Telegrafentext geaendert --> 27 <!--changelog: 21.03.2008/v5.7.20 based on 03.2008/v5.7.19: Neuer Beginn (ausschnitt), KF106, KF108, Hellfax, Telegraf neu/geaendert --> 17 <meta name="t29.SVN" content="$Id$" /> 28 18 <script type="text/javascript"> 29 19 <!-- 30 20 // small "quick & dirty" script to "open the box". See the same at /de/kommunikationstechnik/faxtechnik 31 /*function initTelegrafenstation() {32 document.getElementById("telegraf-offen").style.display = "none";33 document.getElementById("telegraf-zu").getElementsByTagName("img")[0].style.cursor = "pointer";34 }35 function switchTelegrafenstation() {36 document.getElementById("telegraf-zu").style.display = "none";37 document.getElementById("telegraf-offen").style.display = "block";38 }*/39 21 // umgeschrieben fuers Hellfax 40 22 function initGeraeteoeffner() { 41 /*document.getElementById("telegraf-offen").style.display = "none";42 document.getElementById("telegraf-zu").getElementsByTagName("img")[0].style.cursor = "pointer";*/43 44 23 document.getElementById("hellfax-offen").style.display = "none"; 45 24 document.getElementById("hellfax-zu").style.cursor = "pointer"; 46 47 25 } 48 26 … … 51 29 document.getElementById(name+"-offen").style.display = name=="telegraf"?"block":"inline"; 52 30 } 31 32 var backup = window.onload; 33 window.onload = function() { backup(); initGeraeteoeffner(); } 53 34 // --> 54 35 </script> 55 36 </head> 56 <body onLoad="initGeraeteoeffner();">37 <body> 57 38 <!--#echo encoding="none" var="heading" --> 58 39 <div id="content"> 59 <h2><!--#echo var="title" --></h2> 60 61 <div class="box left"> 40 <!-- Etwas unkonventionell - mehrere h2 auf der Seite verteilt --> 41 <h2>Telegraphy</h2> 42 43 <div class="box left clear-after"> 62 44 <a href="/en/devices/morse_telegraph.shtm" name="backlink-morse-telegraph"><img src="/shared/photos/kommunikationstechnik/telegrafie-regal.jpg" alt="The telegraph's rack" width="240" height="464" /></a> 63 45 <div class="bildtext"> … … 78 60 </p> 79 61 </div> 80 <div class="clear"> </div>81 62 </div> 82 63 … … 104 85 </div>--> 105 86 106 <div class="box center ">87 <div class="box center auto-bildbreite"> 107 88 <img src="/shared/photos/kommunikationstechnik/morsetelegraph-um1900.jpg" width="439" height="249" alt="Morsetelegraph um 1900" /> 108 <p class="bildtext -bildbreite" style="width:439px;">This telegraph station was built in the time about 1900. More than 100 years ago, no one cared about time89 <p class="bildtext">This telegraph station was built in the time about 1900. More than 100 years ago, no one cared about time 109 90 thus communication was quite unhurried.</p> 110 91 </div> 111 92 112 <div class="box center ">93 <div class="box center auto-bildbreite"> 113 94 <img src="/shared/photos/kommunikationstechnik/morseempfaenger.jpg" width="439" height="254" alt="Morse reciever" /> 114 <p class="bildtext -bildbreite" style="width:439px;">This picture shows the edgewise view from the morse reciever. The apparature is connected to a paper tape morse transmitter from the 60s.</p>95 <p class="bildtext">This picture shows the edgewise view from the morse reciever. The apparature is connected to a paper tape morse transmitter from the 60s.</p> 115 96 </div> 116 97 98 <h2>Fax engineering, Picture Telegraphy</h2> 99 100 <!-- Eigentlich steht hier ziemlich anderes Zeug im Deutschen (Januar 2010), 101 aber gespickt mit alten Spezialbegriffen, fuer die es im englischen keine 102 Uebersetzungen gibt (bereits erstes Wort: Faximile) --> 103 117 104 <p>It is quite incredible: Fax machines were already mass-produced in 1929. However, it 118 105 was difficult to run these machines. The first pracitcal fax machines are a german invention: The "Normalpapierfax" (a fax machine that … … 182 169 </div> 183 170 184 <div class="box center ">171 <div class="box center auto-bildbreite"> 185 172 <img src="/shared/photos/kommunikationstechnik/siemens_kf106.jpg" width="513" height="416" alt="SIEMENS fax machine KF 106" /> 186 <p class="bildtext-bildbreite" style="width:513px;"> 187 The <b>Siemens (HELL) fax machine KF 106</b> is very rare. This "remote copy machine" was produced in 188 1954/55. The ink-based write approach was already matured. Sad to say, the service-friendliness was quite 189 bad. The bulky device (27 kilogram) scans only a DIN A5 sheet. Already 1956 the successor KF 108 190 came on the market, with great improvements. 191 </p> 192 </div> 193 194 <div class="box center"> 173 <p class="bildtext"> 174 Very rare <b>Siemens (HELL) fax machine KF 106</b> 175 </p> 176 </div> 177 178 <p> 179 This "remote copy machine" was produced in 1954/55. The ink-based write 180 approach was already matured. Sad to say, the service-friendliness was 181 quite bad. The bulky device (27 kilogram) scans only a DIN A5 sheet. 182 Already 1956 the successor KF 108 came on the market, with great 183 improvements. 184 </p> 185 186 <div class="box center auto-bildbreite"> 195 187 <img src="/shared/photos/kommunikationstechnik/siemens_kf108-gross.jpg" width="520" height="363" alt="SIEMENS fax machine KF 108" /> 196 188 <p class="bildtext"> 197 The illustration shows the <b>SIEMENS fax machine KF 108</b> (year of manufacture 1956). 198 <br/>It works in a similar way like the Fultograph. Instead of the electrochemical recording, 199 ink is put on the usual paper by the help of complex mechanics. 200 201 <br/>It works similar to the fultograph. Instead of a electochemical notation, ink is brought by a small rotating sapphire reel onto normal paper. 202 <br/>A KF 108 will even be able to send and recive faxes when the modern fax devices are trashed. Of course, it is not compatible to today's devices. Siemens produced the device in a typical german manner: Everything is huge and indestructible. In these days you did not throw everything away. 203 </p> 204 </div> 205 206 <p>The next fax (year of manufacture 1963, also used for weather cards) weights 90 kg and has even electonic tubes. In the 1960s, weather offices were able to recive the latest weather cards (with pages bigger than DIN A3) with these machines.</p> 207 208 <div class="box center"> 189 <b>SIEMENS fax machine KF 108</b> (year of manufacture 1956) 190 </p> 191 </div> 192 193 <p> 194 The KF 108 works in a similar way like the Fultograph. Instead of the 195 electrochemical recording, ink is put on the usual paper with the help 196 of complex mechanics. 197 198 <br/>It works similar to the fultograph. Instead of a electochemical 199 notation, ink is brought by a small rotating sapphire reel onto normal 200 paper. 201 <br/>A KF 108 will even be able to send and recive faxes when the modern 202 fax devices are trashed. Of course, it is not compatible to today's 203 devices. Siemens produced the device in a typical german manner: Everything 204 is huge and indestructible. In these days you did not throw everything away. 205 </p> 206 207 <p> 208 The next fax (year of manufacture 1963, also used for weather cards) weights 209 90 kg and has even electonic tubes. In the 1960s, weather offices were able 210 to recive the latest weather cards (with pages bigger than DIN A3) with 211 these machines. 212 <br/>The Hellfax-Blattschreiber BS 100 shows how exhausting it was to send 213 DIN A2 fax drawings in the 1960s. This device was used to recive weather 214 cards with radio communication. You can also see an <a class="go" 215 name="backlink-hellfax" href="/en/devices/hellfax-functionality.shtm">Hellfax 216 unctional diagram</a>. Clicking on the picture will open the front lid. 217 </p> 218 219 220 <div class="box center auto-bildbreite"> 209 221 <img src="/shared/photos/kommunikationstechnik/hellfax_bs110-geschlossen.jpg" alt="The Hellfax-Blatschreiber BS 100, with closed lid" onClick="switchGeraet('hellfax');" id="hellfax-zu" /> 210 222 <img src="/shared/photos/kommunikationstechnik/hellfax_bs110-geoeffnet.jpg" alt="The Hellfax-Blattschreiber BS 110 with opened lid" id="hellfax-offen" /> 211 223 <p class="bildtext"> 212 The <b>Hellfax-Blattschreiber BS 100</b> shows how exhausting it was to send DIN A2 fax drawings in the 1960s. This device was used to recive weather cards with radio communication. You can also see an <a class="go" name="backlink-hellfax" href="/en/devices/hellfax-functionality.shtm">Hellfax functional diagram</a>. Click on the picture to open the front lid. 224 <b>Hellfax-Blattschreiber BS 110</b> 213 225 </p> 214 226 </div> 227 228 <h2>Teletype technology</h2> 215 229 216 230 <!-- … … 230 244 Auf Basis dieses Textes nun meine englische Übersetzung: 231 245 --> 232 <div class="box center ">246 <div class="box center auto-bildbreite"> 233 247 <img src="/shared/photos/kommunikationstechnik/hellschreiber.jpg" width="629" height="245" alt="Hellschreiber GL 72" /> 234 <p class="bildtext -bildbreite" style="width:629px;">248 <p class="bildtext"> 235 249 The <b>Hellschreiber GL 72</b>, year of manufacture 1952 236 250 (in the picture on the left). This device assignes an unique … … 262 276 disaster safe kind of communication.</p> 263 277 264 <div class="box center ">278 <div class="box center auto-bildbreite"> 265 279 <img src="/shared/photos/kommunikationstechnik/fernschreiber.jpg" width="520" height="536" alt="Teletypewriter" /> 266 <p class="bildtext-bildbreite" style="width:520px;"> 267 Teletype from Siemens, year of manufacture 1952. Below in the picture, you can see a paper tape sender. 268 While typing the text, it was fed into the paper tape and could be send afterwards quite fast. 269 This is quite equal how today's e-mail clients work: They buffer the text while the user inputs 270 it until it is send in one go, instead of streaming the keyboard input "live" to the recipient. 271 Of course this apperature is still fully executable. 272 </p> 273 </div> 274 275 <!-- This paragraph was replaced on 27. july 08 in favour of... --> 280 <p class="bildtext"> 281 <b>Siemens Teletype</b>, year of manufacture 1952 282 </p> 283 </div> 284 285 <p> 286 Below in the picture, you can see a paper tape sender. 287 While typing the text, it was fed into the paper tape and could be send afterwards quite fast. 288 This is quite equal how today's e-mail clients work: They buffer the text while the user inputs 289 it until it is send in one go, instead of streaming the keyboard input "live" to the recipient. 290 Of course this apperature is still fully executable. 291 </p> 292 293 294 <h2>Flexowriter</h2> 295 <!-- This paragraph was replaced on 27. july 08 in favour of... --> 276 296 <!-- 277 297 <p>Long time before, telegraph offices (about 1900), the early teleprinters (1938) and Hellschreiber (1952) were used. A demonstration shows something unbelievable: The Hellschreiber writes a dictate from a dictating machine from the early fifties without mistakes!?<br/> … … 279 299 --> 280 300 <!-- ...this paragraph: --> 281 <div class="box center ">301 <div class="box center auto-bildbreite"> 282 302 <img src="/shared/photos/kommunikationstechnik/olympia-schreibautomat.jpg" width="629" height="242" alt="Olympia Flexowriter" /> 283 <div class="bildtext -bildbreite" style="width:629px;">303 <div class="bildtext"> 284 304 <p>As a kind of spin-off products of the teletype 285 305 development, the electromechanical "wordprocessing systems" -
en/communication/measurement.shtm
r123 r140 13 13 <!--#include virtual="/en/inc/head.inc.shtm" --> 14 14 <meta name="keywords" lang="de" content="Messtechnik, Spiegelgalvanometer, Szintillationsmeßplatz" /> 15 <meta name="DC.Title" content="technikum29 - <!--#echo var="title" -->" />16 <meta name="DC.Subject" content="<!--#echo var="title" -->" />17 15 <meta name="t29.SVN" content="$Id$" /> 18 <meta name="t29.germanoriginal" content="22.07.2007/v5.7.23" />19 <meta name="t29.thistranslation" content="27.07.2007/v5.7.23" />20 <meta name="t29.comment" content="neu: AEG-Oszi, Schulelektronikbild geaendert" />21 <!--changelog: 19.04.2006/v5.5BETA based on 13.04.2006/v5.4.1(De) -->22 <!--changelog: 19.08.2007/v5.7.5 -->23 <!--changelog: 15.09.2007/v5.7.8 based on 18.07.2007/v5.7FINAL: Kaiserzeit ersetzt, morsing sache auch -->24 16 </head> 25 17 <body> … … 35 27 --> 36 28 37 <div class="box left ">29 <div class="box left clear-after"> 38 30 <img src="/shared/photos/kommunikationstechnik/experimente.jpg" alt="Some of the experimental physics devices" width="396" height="451" class="nomargin-bottom" /> 39 31 <p class="bildtext"> … … 43 35 <br/>We will go into detail for some of the devices shown on the left. 44 36 </p> 45 <div class="clear"></div>46 37 </div> 47 38 48 <div class="box left"> 49 <img src="/shared/photos/kommunikationstechnik/universalmessgeraet.jpg" alt="Fotografie des Universalmeßgerätes" width="396" height="325" class="nomargin-bottom" /> 39 <h3>Galvanometer</h3> <!-- sic --> 40 41 <div class="box left clear-after"> 42 <img src="/shared/photos/kommunikationstechnik/universalmessgeraet.jpg" alt="Fotografie des Universalmeßgerätes" width="396" height="325" /> 50 43 <p class="bildtext"> 51 44 This is a remarkably functional, big and beautiful all-purpose measurement device made by Siemens & Halske (about 1905). At that time even simple objects of utulity were made lovely detailed. This device was used as auxiliary device for morsing purposes in the national administration of the German Empire. 52 45 </p> 53 <div class="clear"> </div>54 46 </div> 55 47 56 <div class="box right ">57 <img src="/shared/photos/kommunikationstechnik/galvanometer.jpg" alt="Galvometers" width="321" height="275" class="nomargin-bottom"/>48 <div class="box right clear-after"> 49 <img src="/shared/photos/kommunikationstechnik/galvanometer.jpg" alt="Galvometers" width="321" height="275" /> 58 50 <p class="bildtext">This is only an example from the early measurement technique: any galvanometer from the 20s. The lovely, sumptuous and nice design of the appearance is unmistakable, althought it is only a simple customer equipment.</p> 59 <div class="clear"> </div>60 51 </div> 61 52 62 <div class="box left ">53 <div class="box left clear-after"> 63 54 <img src="/shared/photos/kommunikationstechnik/h&b-galvanometer.jpg" alt="Photography of a mirror galvanometer" width="396" height="436" /> 64 55 <div class="bildtext"> … … 70 61 By this way very long needle lengths (multiple meters) could be simulated. 71 62 Such a galvanometer must be set up absolutely horizontally and vibration-free. 72 <br/>The <b>Mirror Galvanometer</b> by Hartmann & nbsp; Braun is63 <br/>The <b>Mirror Galvanometer</b> by Hartmann & Braun is 73 64 a simple and functional demonstration model from the 1920s.</p> 74 65 </div> 75 <div class="clear"> </div>76 66 </div> 67 68 <h3>Cathode Ray Tubes</h3> 77 69 78 <div class="box left ">70 <div class="box left clear-after"> 79 71 <img src="/shared/photos/kommunikationstechnik/loewe-kathodenstrahl.jpg" alt="Photography of the cathode ray tube" width="396" height="189" /> 80 72 <p class="bildtext"> … … 92 84 93 85 <!-- paragraph: AEG Oszi. Translated/Started at 28.07.08--> 94 <div class="box right ">95 <img src="/shared/photos/kommunikationstechnik/aeg-oszi.jpg" alt="Photography of an AEG oscilloscope" width="425" height="419" class="nomargin-bottom"/>86 <div class="box right clear-after"> 87 <img src="/shared/photos/kommunikationstechnik/aeg-oszi.jpg" alt="Photography of an AEG oscilloscope" width="425" height="419" /> 96 88 <p class="bildtext"> 97 89 After the currency reform in West Germany, the production … … 105 97 absolutely with this device, you always need reference sizes. 106 98 </p> 107 <div class="clear"> </div>108 99 </div> 109 100 110 <div class="box left ">111 <img src="/shared/photos/kommunikationstechnik/phywe-oszi.jpg" alt="Photography of a Phywe demonstration oscilloscope" width="396" height="269" class="nomargin-bottom"/>101 <div class="box left clear-after"> 102 <img src="/shared/photos/kommunikationstechnik/phywe-oszi.jpg" alt="Photography of a Phywe demonstration oscilloscope" width="396" height="269" /> 112 103 <p class="bildtext"> 113 104 The "Physikalischen Werkstätten" (<i>phsyical facilities</i>), <b>Phywe</b>, … … 117 108 were state-of-art at those days. 118 109 </p> 119 <div class="clear"> </div>120 110 </div> 111 112 <h3>Radio engineering</h3> 121 113 122 <div class="box left ">123 <img src="/shared/photos/kommunikationstechnik/neva-funktechnik.jpg" alt="Photography of the Neva Experimental system" width="396" height="280" class="nomargin-bottom"/>114 <div class="box left clear-after"> 115 <img src="/shared/photos/kommunikationstechnik/neva-funktechnik.jpg" alt="Photography of the Neva Experimental system" width="396" height="280" /> 124 116 <p class="bildtext">With the <b>NEVA radio technology system</b>, students could 125 117 do challenging experiments like measuring the wave lengths in the VHF area … … 127 119 niedrig sind => ungefaehrlich. --> 128 120 </p> 129 <div class="clear"> </div>130 121 </div> 131 122 132 <div class="box left"> 133 <img src="/shared/photos/kommunikationstechnik/digitalexperimentiersystem.jpg" alt="photography of an electronic experimental system for use in schools" width="396" height="509" class="nomargin-bottom" /> 123 <h3>Digital experience system</h3> 124 125 <div class="box left clear-after"> 126 <img src="/shared/photos/kommunikationstechnik/digitalexperimentiersystem.jpg" alt="photography of an electronic experimental system for use in schools" width="396" height="509" /> 134 127 <p class="bildtext">This big white board is an experience system from 135 128 <b>Leybold</b> from the early 1970s. At that time, the subject … … 138 131 etc. This was quite fascinating for students at that time. Today, in ordinary 139 132 schools, there is no more time for electronics in the curriculars.</p> 140 <div class="clear"> </div>141 133 </div> 134 135 <h3>The world of electronical calculating</h3> <!-- schleim... --> 142 136 143 <div class="box left ">144 <img src="/shared/photos/kommunikationstechnik/frequenz-ereigniszaehler.jpg" alt="Photography of different frequency- and event counters" width="396" height="500" class="nomargin-bottom"/>137 <div class="box left clear-after"> 138 <img src="/shared/photos/kommunikationstechnik/frequenz-ereigniszaehler.jpg" alt="Photography of different frequency- and event counters" width="396" height="500" /> 145 139 <p class="bildtext"><b>Calculating requires counting</b> 146 140 <br/>Last but not least we show a composition of (frequency) counters from … … 149 143 The different counting tubes (e.g. E1T or GC10B) and the very different 150 144 display types are quite impressive.</p> 151 <div class="clear"> </div>152 145 </div> 146 153 147 </div><!-- end of content --> 154 148 <!--#include virtual="/en/inc/menu.inc.shtm" --> -
en/communication/sound_technology.shtm
r123 r140 15 15 <meta name="keywords" lang="de" content="Kosmograph Diktiergerät, Loewe Ferrophon III, Loewe, Diktiergerät" /> 16 16 <meta name="keywords" lang="en" content="technikum, museum, communication, gramophone, Loewe, dictating machine" /> 17 <meta name="DC.Title" content="technikum29 - <!--#echo var="title" -->" />18 <meta name="DC.Subject" content="<!--#echo var="title" -->" />19 17 <meta name="t29.SVN" content="$Id$" /> 20 <meta name="t29.germanoriginal" content="v5.8.x/10.2008" />21 <meta name="t29.thistranslation" content="v5.8.x+1/13.10.2008" />22 <meta name="t29.comment" content="New: Dual 1000 gramophone automatic recorder" />23 <!--changelog: 26.04.2006/v5.5.1 -->24 <!--changelog: 19.08.2007/v5.7.5 (Überetzung/Umstrukturierung v5.7) auf Basis 19.08.2007/v5.7.1 -->25 <!--changelog: 27.07.2008/v5.8.0 auf Basis 22.07.2008/v5.8.0 Update: AEG-Magnetophon, Klein-Reporter W52 -->26 18 </head> 27 19 <body> … … 30 22 <h2><!--#echo var="title" --></h2> 31 23 32 <p>It was a long way with many quaint and interesting variants until the today's CD. Trumpet gramophone, tape recorders in its history of development, (among others AEG, 39kg heavy full-track technology from 1938), Optaphon, the first mechanically controlled autoreserve (1952) until professional tape recorders from 1960 are shown. Futhermore: Wire recorders, automatical answering machines (1954), devices with "gramophone bands" where the sound was not saved magnetically but like on gramophone records (Tefifon) and many more. 33 <br/>On this page, we have chosen one of the three dictaphones from the early office technology.</p> 24 <p>It was a long way with many strange and interesting variants until the today's CD. 25 Trumpet gramophone, tape recorders in its history of development, (among others 26 AEG, 39kg heavy full-track technology from 1938), Optaphon, the first mechanically 27 controlled autoreserve (1952) until professional tape recorders from 1960 are shown. 28 Futhermore: Wire recorders, automatical answering machines (1954), devices with 29 "gramophone bands" where the sound was not saved magnetically but like on 30 gramophone records (Tefifon) and many more. 31 </p> 32 33 <h3>Dictating machines</h3> 34 <p>As an excerpt, this is one of the dictaphones from the early office technology.</p> 34 35 35 <p>Only the drive was electrical. The sonic oscillations were conducted through a mouthpiece and an hose made of metal and scored in the rotating disc with a kind of graver. The disc could be played back with an horn (left side of the picture) or with earphones that were connected with hoses to the pickup (left side). Of course the quality was cruel.</p> 36 <p>Only the drive was electrical. The sonic oscillations were conducted through a 37 mouthpiece and an hose made of metal and scored in the rotating disc with a 38 kind of graver. The disc could be played back with an horn (left side of 39 the picture) or with earphones that were connected with hoses to the pickup 40 (left side). Of course the quality was cruel.</p> 36 41 37 <div class="box center ">42 <div class="box center auto-bildbreite"> 38 43 <img src="/shared/photos/kommunikationstechnik/kosmograph.jpg" width="546" height="407" alt="Dictating-machine KOSMOGRAPH" /> 39 <p class="bildtext-bildbreite" style="width: 546px;">Dictating-machine <b>KOSMOGRAPH</b> from the dictating machine factury of Dresden (1935)</p> 44 <p class="bildtext"> 45 Dictating-machine <b>KOSMOGRAPH</b> from the dictating machine factury of Dresden (1935) 46 </p> 40 47 </div> 48 49 50 <h3>Rare tape recorders</h3> 41 51 42 <div class="box center ">52 <div class="box center auto-bildbreite"> 43 53 <img src="/shared/photos/kommunikationstechnik/aeg-magnetophon.jpg" alt="Photography of the AEG Magnetophon" width="546" height="407" /> 44 <p class="bildtext-bildbreite" style="width: 546px;"> 45 <!-- Paragraph translated: 27.07.08 19:00--> 46 Tape recorders that are built before 1952 are technically very interesting and nowadays very rare. The <b>AEG Magnetophon AW 1</b> was built in 1948/49 with the state of art of 1939. The auxiliary case contains amplifiers for recording and replay as well as a loud speaker. On the original tape that is pictured in the photography, one can listen to a german carneval convention <!-- sic! --> recorded in the early 1950s. At that time the device was too expensive for private customers. 54 <p class="bildtext"> 55 Tape recorders that are built before 1952 are technically very interesting 56 and nowadays very rare. The <b>AEG Magnetophon AW 1</b> was built in 1948/49 57 with the state of art of 1939. The auxiliary case contains amplifiers for 58 recording and replay as well as a loud speaker. On the original tape that 59 is pictured in the photography, one can listen to a german carneval 60 convention <!-- sic! --> recorded in the early 1950s. At that time the 61 device was too expensive for private customers. 47 62 </p> 48 63 </div> 49 64 50 <div class="box center ">65 <div class="box center auto-bildbreite"> 51 66 <img src="/shared/photos/kommunikationstechnik/loewe_opta.jpg" alt="Ferrophon IIIc/3" width="546" height="405" /> 52 <p class="bildtext-bildbreite" style="width: 546px;">A radio reporter in 1951 had to be a strong guy to carry the Ferrophon around. This semi-professional tape recorder of Loewe Opta Radio AG Type "Ferrophon IIIc/3" was hardly affordable for the non-commercial user. The replay quality is excellent (max. tape speed of 76cm/sec!) and likewise the used components (a lot of copper parts) which was rare in the early past war years. 53 Including a match box in the picture helps to visualize the physical size of this recorder combination. </p> 67 <p class="bildtext"> 68 A radio reporter in 1951 had to be a strong guy to carry the Ferrophon 69 around. This semi-professional tape recorder of Loewe Opta Radio AG Type 70 "Ferrophon IIIc/3" was hardly affordable for the non-commercial user. The 71 replay quality is excellent (max. tape speed of 76cm/sec!) and likewise 72 the used components (a lot of copper parts) which was rare in the early 73 past war years. 74 </p> 54 75 </div> 76 77 <h3>Shellac <!-- sic! rarely: shellack --> disc changer</h3> 55 78 56 79 <div class="box center"> 57 80 <img src="/shared/photos/kommunikationstechnik/schellackplattenspieler.jpg" alt="Automatic recorder changer for shellac records" width="546" height="343" /> 58 <p class="bildtext-bildbreite" style="width: 546px;"> 59 <!-- paragraph translated: 13.10.2008 01:25 --> 60 Gramophone records are used as sound storage media for quite a long time. After all, in the 1950s, the shellac records were invented. Breakage was very common in this era, until it was displaced by the vinyl records. Automatic record changers were quite rare in the shellac era. The photography above shows the <b>"Dual 1000"</b>, built in 1951/52. The slowly moving pick-up arm while record changing demonstrates the way of listening music at that time. 61 At first this device used the old steel needles that decreased in quality after only three records, until sapphire styluses were invented. 62 </p> 63 </div> 81 </div> 82 83 <p> 84 Gramophone records were used as sound storage media for quite a long time. 85 After all, in the 1950s, the shellac records were invented. Breakage was 86 very common in this era, until it was displaced by the vinyl records. 87 Automatic record changers were quite rare in the shellac era. The photography 88 above shows the <b>"Dual 1000"</b>, built in 1951/52. The slowly moving 89 pick-up arm while record changing demonstrates the way of listening music 90 at that time. 91 At first this device used the old steel needles that decreased in quality 92 after only three records, until sapphire styluses were invented. 93 </p> 64 94 65 <div class="box center"> 95 96 <h3>Wire recording devices</h3> <!-- von Drahtton => Wikipedia --> 97 98 <div class="box center auto-bildbreite"> 66 99 <a href="/en/devices/schaub-lorenz-supraphon.shtm" name="backlink-supraphon" title="See a More detailed photography"><img src="/shared/photos/kommunikationstechnik/schaub-lorenz-supraphon.jpg" alt="Schaub Lorenz Supraphon" width="546" height="561" /></a> 67 <div class="bildtext-bildbreite" style="width: 546px"> 68 <b>(Schaub-)Lorenz Supraphon</b>, year of manufacture 1952. 69 <p>This device uses wires as sound storage media. Thus an hour of music fits into the small coil shown on the right side of device. This is the advantage of using steel wire: It doesn't need much space. The quality of sound was quite suitable, but the flimsy wire was always in danger of tearing. 70 <br/>With this device, you could also listen to a shellac record (78 RPM) while record concurrently to wire.</p> 71 <p>The era of devices using wires to store sound began before the second world war but was already finished at 1965. In this time, tape recorders conquered the market.<br/>Clicking on the picture will show <a href="/en/devices/schaub-lorenz-supraphon.shtm" class="go">a larger and more detailed version</a>.</p> 72 73 <!-- start of Paragraph "Klein-Reporter W 52", translated 27.07.2008 --> 74 <p>Among others, dictating machines also used wires as sound storage media. Thus they could be built quite compactly. The width of a wire tape is only 7cm (about 1.5 inch), but it records about 100 minutes.</p> 75 76 <p><img src="/shared/photos/kommunikationstechnik/reichhalter.diktiergeraet.jpg" width="546" height="222" alt="Photography of the Klein-Reporter"/> 77 </p> 78 <div class="clear"></div> 79 80 <p>The <b>Klein-Reporter W 52</b> (translated literally "small reporter") was made by the german firm REICHHALTER, year of manufacture 1952. On the record which is pictured in the photography one can listen to an original reading about the allied powers in Germany after the World War II. This record is at least 55 years old! Apparently the magnetization of the wire is still very good. </p> 81 <!-- end of Paragraph "Klein reporter ..." --> 82 </div> 83 </div> 100 <p class="bildtext"> 101 <b>(Schaub-) Lorenz Supraphon</b> 102 </p> 103 </div> 104 105 <p> 106 This device (year of manufacture 1952) uses wires as sound storage media. 107 An hour of music fits into the small coil shown on the right side of 108 device. This is the advantage of using steel wire: It doesn't need much 109 space. The quality of sound was almost tolerable, but the flimsy wire was 110 always in danger of tearing. 111 </p> 112 <p> 113 With this device, you could also listen to a shellac record (78 RPM) while 114 recording it concurrently to wire. The era of devices using wires to store 115 sound began before the second world war but was already finished at 1965. 116 In this time, tape recorders conquered the market. 117 Clicking on the picture will show <a href="/en/devices/schaub-lorenz-supraphon.shtm" 118 class="go">a larger and more detailed version</a>. 119 </p> 120 <p> 121 Among others, dictating machines also used wires as sound storage media. Thus 122 they could be built quite compactly. The width of a wire tape is only 7cm 123 about 1.5 inch), but it records about 100 minutes. The <b>Klein-Reporter W 52</b> 124 (translated literally "small reporter"), shown below, was made by the german 125 company REICHHALTER, year of manufacture 1952. On the record tape (as shown 126 in the photography) you can listen to an original law lecture about the allied 127 powers in Germany after the World War II. 128 </p> 129 <div class="box center"> 130 <img src="/shared/photos/kommunikationstechnik/reichhalter.diktiergeraet.jpg" width="546" height="222" alt="Photography of the Klein-Reporter"/> 131 </div> 132 <p> 133 This record is at least 55 years old. Apparently the magnetization of the wire 134 is still very good. 135 </p> 84 136 85 137 </div><!-- end of content --> -
en/communication/television.shtm
r121 r140 15 15 <meta name="keywords" lang="de" content="Fernsehen, Videorekorder, Saba, Ampex, Saba Schauinsland W II, Ampex VR 650" /> 16 16 <meta name="keywords" lang="en" content="technikum, communication, television, video recorder, saba, ampex, vr 650" /> 17 <meta name="DC.Title" content="technikum29 - <!--#echo var="title" -->" /> 18 <meta name="DC.Subject" content="<!--#echo var="title" -->" /> 19 <meta name="t29.germanoriginal" content="18.07.2007/v5.7.1" /> 20 <meta name="t29.thistranslation" content="19.08.2007/v5.7.5" /> 21 <!--changelog: 26.04.2006/v5.5.1 --> 17 <meta name="t29.SVN" content="$Id$" /> 22 18 </head> 23 19 <body> … … 26 22 <h2><!--#echo var="title" --></h2> 27 23 28 <div class="box left ">24 <div class="box left clear-after"> 29 25 <img src="/shared/photos/kommunikationstechnik/ausschnitt-fernsehraum.jpg" alt="Extract from the television area" width="396" height="297" class="nomargin-bottom" /> 30 26 <div class="bildtext" style="padding-top: 147px;">Extract from the television room</div> 31 <div class="clear"> </div>32 27 </div> 33 28 34 <p>In 1952, television was a sensation and only affordable by paying several monthly salaries. Many still working televisions from 1952 to 1956 (of course black and white, one programme!) show how television was watched in its early time. You can also see the former East Germany's <!-- GDR --> first television (round picture tube), "colored television" (by using a foil) and projection systems from the early fifties.</p> 29 <p>In 1952, television was a sensation and only affordable by paying several 30 monthly salaries. Many still working televisions from 1952 to 1956 (of 31 course black and white, one programme!) show how television was watched 32 in its early time. You can also see the former East Germany's <!-- GDR --> 33 first television (round picture tube), "colored television" (by using a 34 foil) and projection systems from the early fifties. 35 </p> 35 36 36 <div class="box center">37 <div class="box left clear-after"> 37 38 <img src="/shared/photos/kommunikationstechnik/saba.schauinsland.jpg" alt="Saba Schauinsland WII" width="420" height="310" /> 38 <p class="bildtext">One of the first television recievers from the postwar period is the <strong>Saba Schauinsland WII</strong>. In 1954 people crowded together in front of the showcase from a radio shop for watching the soccer world championship just out of the 36cm-picture tube installed in this apparature.</p> 39 <p class="bildtext"> 40 One of the first television recievers from the postwar period is 41 the <b>Saba Schauinsland WII</b>. In 1954 people crowded together 42 in front of the showcase from a radio shop for watching the soccer 43 world championship just out of the 36cm-picture tube installed in 44 this device. 45 </p> 39 46 </div> 40 47 41 <div class="box left ">48 <div class="box left clear-after"> 42 49 <a href="/en/devices/saba-telerama.shtm" name="backlink-telerama" title="Erläuterung und Bild der Telerama-Projektion anschauen"><img src="/shared/photos/kommunikationstechnik/saba_telerama.jpg" alt="Saba Telerama" width="360" height="466" /></a> 43 50 <div class="bildtext"> … … 45 52 <p>Since 1956, the German company SABA produced projection TV-sets. The advertisements said you could even watch television in light rooms which are not shaded. This promise was exaggerated: Only with a special projection screen (made by Saba) which reflects the light primarily in one direction, you can see a sufferable image. Clicking on the picture will show you an <a href="/en/devices/saba-telereama.shtm" class="go">explanation of the Telerama projection technology.</a></p> 46 53 <p>On the right hand in the background you can see a multifunctional device made by Nordmende to see television, hear to broadcasting and gramophone records. On the left the concurrency device with the same features made by Telefunken. They are both made in 1954.</p> 47 </div> 48 <div class="clear"> </div> 54 </div> 49 55 </div> 50 56 51 <div class="box left"> 52 <img src="/shared/photos/kommunikationstechnik/sony_kp5010.jpg" alt="Fotografie vom Sony KP 5010" width="360" height="466" class="nomargin-bottom" /> 53 <div class="bildtext"><b>Sony KP 5010</b> 54 <p>This is the world's first rear projection colour television set. It was built in the early 1970s and does not yet use ICs but transistors (second generation).</p> 55 <!-- 2 Grundfarben kommt nicht, weil die englischen Besucher nicht das technikum29 besuchen werden --> 57 <div class="box left clear-after"> 58 <img src="/shared/photos/kommunikationstechnik/sony_kp5010.jpg" alt="Fotografie vom Sony KP 5010" width="360" height="466" /> 59 <div class="bildtext"> 60 <b>Sony KP 5010</b> 61 <p>This is the world's first rear projection colour television set. It was built in the early 1970s and does not yet use ICs but transistors (second generation).</p> 62 <!-- 2 Grundfarben kommt nicht, weil die englischen Besucher nicht das technikum29 besuchen werden --> 63 </div> 56 64 </div> 57 <div class="clear"> </div> 65 66 <div class="box left clear-after"> 67 <img src="/shared/photos/kommunikationstechnik/telefunken.tp1005.jpg" alt="Fotografie des Telefunken Bildplattenspielers TP1005" width="360" height="236" /> 68 <p class="bildtext">Furthermore we demonstrate executable heavy video recorders with 1- or as well 2-inch tapes (Ampex, Grundig, Philips) and players for optical videodisks which are quite awesome. In 1975 the Telefunken optical videodisc player <b>TP 1005</b> (picture on the right) came on the market. A mechanically driven micro-diamond scanned the optical videodisks. Unfortunately the system did not get recognition any more because the disks stores only ten minutes of video.</p> 58 69 </div> 59 70 60 <div class="box left"> 61 <img src="/shared/photos/kommunikationstechnik/telefunken.tp1005.jpg" alt="Fotografie des Telefunken Bildplattenspielers TP1005" width="360" height="236" class="nomargin-bottom" /> 62 <p class="bildtext">Furthermore we demonstrate executable heavy video recorders with 1- or as well 2-inch tapes (Ampex, Grundig, Philips) and players for optical videodisks which are quite awesome. In 1975 the Telefunken optical videodisc player <b>TP 1005</b> (picture on the right) came on the market. A mechanically driven micro-diamond scanned the optical videodisks. Unfortunately the system did not get recognition any more because the disks stores only ten minutes of video.</p> 63 <div class="clear"> </div> 64 </div> 65 66 <div class="box center"> 71 <div class="box center auto-bildbreite"> 67 72 <img src="/shared/photos/kommunikationstechnik/ampex.vr650.jpg" alt="AMPEX VR 650" width="600" height="369" /> 68 73 <p class="bildtext"><b>AMPEX VR 650</b>, an early bulky transportable video unit from Ampex, equipped with 2-inch tapes from 1964. It was the first transistorized apparature made by Ampex, featuring germanium transistors. Of course the device was not intended for privat use. Although it was versatile, hospitals often recorded radiographies with this apparature.</p>
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