5W Amplifier with LM383 (CB25309E)

This circuit for the car was found in the April 1990 Radio Electronics magazine. The speaker is 4-ohms.

Sensitive Geiger Detector (CB5925E)
Critical components of this project are the Geiger tube and the 300V battery. The battery can be...
Diodes and FETs Leak Test (CB13943E)
The instrument is a common multimeter on the lower voltage scale. The FET can be BF245 or MPF102. The...
Bridge amplifier (CB8946E)
Suggested by National Semiconductor in a documentation of the 90s, this circuit uses a power...