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.
This circuit came out in an American magazine that no longer exists. It's the Electronic...
This circuit originally came out in a Budget Electronics from 1981. The American magazine no...
This is the traditional audio preamp configuration with the National Semiconductor LM382. The...