Reverse-engineering the waveform generator in a 1969 breadboard @kenshirriff
Ken Shirriff was asked to fix a vintage solderless breadboard that didn’t work. The “elite 2 circuit design test system” below combined a solderless breadboard with some supporting circuitry: power supplies, a waveform generator, a pulse generator, switches, and lights.
CuriousMarc found one of these breadboards on eBay, but the function generator didn’t work, so we set out to repair it.
This complexity probably explains the shockingly high price of this breadboard: $1300 in 1969 (equivalent to $10,000 in current dollars).
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