This circuit was featured in the March 1972 issue of Radio Electronics magazine. It adds automatic gain control to turntables by acting directly on the cartridge signal.
This circuit can be used as a time automation for driving motors in robotics and mechatronics. What we have...
The source used in this timer is of the type without transformer and regulated by the 7 W zener. The...
This trigger-delay circuit was found in a 1960s General Electric unijunction transistor manual. The...