A Fubsy Polymath subdomain
Analog Computers
Solving differential equations with op-amps, patch cords & voltage.
Multi-volume deep dives into the machines that compute with continuous voltage instead of bits — 3 fully documented so far.
Machine deep dives
Live THAT — The Analog Thing A modern open-source desktop analog computer — patch op-amps to solve differential equations in real time. Live
Live Heathkit EC-1 Heath's 1959 educational analog computer — nine op-amps of tube-era equation solving. Live
Live Heathkit ES-400 Heath's analog-computer trainer (H-1) — a deeper bench machine for control-systems study. Live
More machines coming
Aeon Dynamic SimulatorEAI TR-10GE Project EE-140Vogel HomebrewHomebrew / Open-Source