Found in the CQ radio amateur magazine, this circuit generates a standard 100 kHz signal. The circuit is from 1965 and can be made with modern equivalent transistors.
This circuit intermittently activates a relay. It was obtained in a 1980 publication. In fact, we...
Suggested by a Popular Electronics, this small amplifier that has a detector to follow RF...
This source gently applies the voltage to the load, causing it to rise slowly, thus avoiding...