This amplifier for recording heads was found in a Radio Electronics from September 1963. The circuit uses period transistors but can be modified to work with modern transistors.
This simple circuit indicates when the two channels of stereo equipment are balanced. The diodes can...
We found this circuit with an operational transconductance amplifier in the Motorola Linear...
This circuit was obtained in an English magazine from 1978. We can easily assemble it because all...