This circuit was found in the June 1991 issue of Radio Electronics magazine. The circuit uses two Hall effect sensors of the time. It can be assembled using modern equivalents.
This circuit is from a 1966 Motorola Field Effect Transistors Manual. The circuit makes use of...
We find this circuit measuring from 1 to 1000 mW of power from small transmitters and oscillators in...
This traditional stable configuration with the TTL 7400 integrated circuit was obtained in a...