LED Flasher Unijunction (CB22144E)

The frequency of this circuit depends on the capacitor. The unijunction transistor can be the 2N2646.

Bench Audio Amplifier (CB18061E)
The circuit presented, from a 2005 documentation, can provide from 1 W to 2.5 W of output when...
12 V Power Supply (CB24505E)
To power small projects, we found this circuit in the Radio Electronics magazine of May 1977. The...
Balanced Modulator MC1594 (CB14588E)
This circuit is from the Motorola Linear Databook from 1990. The integrated circuit used is...