This tone control was obtained in the Audio Handbook of the National Semiconductor of 1977. The circuit controls the signals of medium frequencies in a wide dynamic range as shown in the diagram.
This is the typical audio amplifier for a 1967 television. We found it in a magazine from the...
This circuit is from an English magazine from 1980, but it can be easily assembled with more...
This circuit was suggested by a 1967 General Electric manual. The waveforms of the generated...