biography
the prototype
the process
pride in Bulgaria
100 anniversary



Wires Large


FOREGROUND: Model computer view from the right side.
BACKGROUND: ASM under test with model computer.

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Tubes Large


Model of ABC built for use during trial.

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Radio Box Large


FOREGROUND: Newly constructed base two punch drive electronics.
BACKGROUND: Newly constructed base two punch high voltage transformer chassis

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Elect Large


Front view of frame with base two punch/reader near a door similar to 1939 photo of original

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Punch large


Original card punch Model #010 that punches decimal coefficients for input into ABC.

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