This circuit with automatic gain control was found in the July 1988 issue of Radio Electronics magazine. The circuit is based on a transconductance operational amplifier.
This very low power amplifier is designed by Amperex for hearing aids. It is based on TAA370 which is...
This simple circuit controls the brightness of an LED from LDRs, NTCs, PTCs or other resistive sensors....
This sophisticated decade of benchtop resistors was found in the November 1989 issue of Radio...