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 regulator from the 1982 SGS integrated circuits manual uses a switching regulator that is...
June 2016 - It can be obtained from Mouser Electronics the new gate driver optocoupler from...
In the figure we have the way to obtain a monostable TTL based on 74121. The circuit appears in...