- The "nightly" Anita inner life: The thyratrons flow redly, flashing during calculating. -
-- This is a part from the numeric display. The gas-filled nixie tubes - (glow lamp's principe) came onto the marktet just in time. -
-- The upper circuit board contains a ring counter. The gas-filled thyratrons are very small. This - was the only way to place approx. 144 pices into a manageable case. These relay tubes - have only two states like mechanical relays. - Additionally there are 11 vacuum tubes (ECC 82, left side) built into the calculator. -
- The complete counting decade with a nixie tube is shown below. -
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