This is the typical audio amplifier for a 1967 television. We found it in a magazine from the time. Note the use of the output transformer and the high supply voltage. The circuit is an RCA CTC21.
To a 16-0hm load, this amplifier provides a power of 10 W. We found this circuit in a Motorola...
This distortion circuit was found in an American publication from 1970. It can be assembled with...
This configuration was found in an English magazine from 1965. It is valid for any junction FET. The...