This circuit is from a Hughes documentation from 1968. The components are of the time and the RC network determines the operating frequency of the circuit.
We found this circuit in a Hands On Electronics from the 90s. However, the circuit can still be...
We find this efficient emergency lighting system in a 1987 publication. The circuit keeps a...
This circuit was obtained from a Linear Technology manual from the 1990s. The sensor is of the...