This circuit was found in a 80s American documentation. The zener diodes determine the points of action of each stage and the transistors can be general purpose types.
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...
We found this guitar effects circuit in a 1997 documentation. As the components used are still...
This FM transmitter has a high power thanks to a push-pull amplifier stage at the output. The coil...