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Tektronix model AM-501 Operational Amplifier

Tektronix did not make analog computers but did produce a popular operational amplifier
module for their 500 series modular instruments. These were sometimes assembled into blocks
that could make up a computer. This setup includes 29 model AM-501 op-amp plug-ins and various
function generators, reference power supplies, meters, and oscilloscopes. Not shown are some custom
patch panels that have relays and pots for initial condition settings.

Tektronix AM-501 Op-amp rack. AM-501 Op-amps and FG-503 function generators. Oscilloscopes and misc. modules.
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