LED Flasher Unijunction (CB22144E)

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

Diode Noise Generator (CB4127E)
This noise generator uses the thermal noise of a common diode junction. The circuit is from an...
Optical Isolator Power Switch (CB12413E)
This solid-state relay (SSR) or shield was found in a 1995 Electronics Now. The transistor can be...
Capacitive Loads Driver Circuit MC34001 (CB15275E)
Other operational amplifiers from the same family such as MC34002, MC35001, MC34004 and MC35004 can...