Stanley Meyer Gas Feedback Control Circuit-GMS Gas Management System
Gas feedback control circuit.
1: It has the pressure transducer hooked to it.
2: It maintains a certain low pressure limit.
3: If the pressure gets to a certain high pressure limit it turns the cell off.
4: It also has a pressure gauge hooked to it so you can see the pressure in the cell.
I count 6 op-amps, 3 PLLs, 2 one-shots and 2 quad nor gates.
electrostatic filter boards also controlled the cell water level and stuff i think. Seemed like there were quite a few more parts on the board than in the schematic. Maybe Stan had it built for dual control or something, multiple chambers if needed.