This sensitive two-transistor circuit was found in the June 1965 Radio Electronics magazine. The circuit has low drift and uses an analog instrument. The input resistance is high.
Obtaining a voltage that is proportional to a current drained by a load can be important in...
The good signal of this circuit depends on L1 and C1. For 80 turns of wire 28 with a central...
Found in a 1966 General Electric manual, this circuit provides a delay in starting. The motor is...