This small 1W turntable amplifier was found in the 1975 RCA tube manual. It is a commercial circuit at the time.
This circuit was obtained from an old English book. Transistors are types of the time....
Found in an American magazine from 1968, this circuit produces pulses free of bounces on its...
We found this configuration with a logic circuit that is now uncommon in an 80's documentation. The circuit...