We found this circuit in a 1985 documentation. The transformer is an old TV flyback that has an exposed part of the core, where 10 to 20 turns of common wire are wrapped.
This application consists of a circuit that trips when the sensor resistance drops below a few...
A negative floating regulator capable of supplying an output voltage of -100 V with regulation of 20 mV for...
This circuit was found in a 1977 Radio Shack documentation. The circuit is TTL, which must be...