Using Neon Bulbs as Active Logic Elements

Neon bulbs have hysteresis and negative resistance—the voltage to turn them on (“strike voltage”) is greater than required to keep them lit (“maintaining voltage), which allows them to be used as a memory element. Here is more about the Nixie tube clock shown in the video whose counting circuitry is built entirely from neon bulbs, “Nixie-clock using neon lamps as logic elements”.

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