This high input impedance tone control circuit was found in American documentation from the 1980s. Equivalent operational amplifiers and FTEs can be used.
We found this circuit in a Popular Electronics of the 80s. The circuit can be made with almost any...
Found in a 1990s Motorola documentation, this circuit aims to protect a triac that drives an...
In the figure we present an interesting application suggested by Microchip (www.microchip.com) in which the voltage...