The figure shows an application of the LM377 in a small inverting stereo amplifier with output powers between 3 and 4 W. The circuit is from a Radio Electronics from April 1990.
In the figure we show a timer, this simple one with only one of the four gates of integrated...
This circuit is a sensor for photodiodes that can be used in optical couplers, encoders and other...
This crystal tester was found on a 90s Ham Radio. Transistors are commonly used. The circuit is for...