This circuit is a modification of the previous one, also found in the July 1995 Electronics Now magazine. The triac must be according to the controlled power.
In the figure we have a circuit suggested by National Semiconductor, using an operational...
Tone controls for audio applications can also be considered filters that must attenuate certain...
This circuit was found in an Argentine publication from 1973. It uses a common AM coil (50 + 50...