This circuit was obtained in Linear Technology documentation from 1993. The circuit provides 3.3 V and 5 V outputs with high current. The integrated circuit is from the time.
This circuit is from a 1995 technical documentation. The transistor can be a BC558 and the sensor...
Found in a Popular Electronics from the 90s, this circuit checks the presence of voltage on a...
The critical component of this amplifier is the output transformer. We found the circuit in an old...