This circuit uses CMOS integrated circuits and can operate with CMOS logic from 3 to 15 V or TTL with 5 V power. The power is obtained from the circuit under analysis.
The circuit presented was found in a Motorola documentation from 19761, but it can be assembled with a...
This simple bargraph photometer appeared in the November 1987 issue of Radio Electronics magazine. The...
This circuit, found in a 1964 US documentation, consists of a selective amplifier that lets only...