This good power amplifier, a few tens of watts, is part of an article in the December 1972 Radio Electronics magazine. The power supply must be symmetrical with at least 3 A.
This analog voltmeter with great sensitivity and input resistance has a traditional configuration found in...
This circuit is used to turn on the headlights when it gets dark. The circuit is from an...
The indicated circuit is based on the National Semiconductor LM3524 which is not an easy component to...