Audio amplifier 741 (CB20478E)

This low power audio amplifier was found at 1992s Popular Electronics. Transistors are general purpose common types.

100-second monostable (CB25671E)
This 3-transistor timer was found in the January 1994 issue of Electronics Now magazine. The...
Voltage controlled dimmer (CB22140E)
This Dimmer circuit for incandescent lamps was found in an English documentation. The input...
Impedance Adapter (CB11158E)
With this circuit we can use a high impedance source to excite a low impedance output. The input is...