Found in the September 1972 issue of Radio Electronics magazine, this signal injector is based on the HEP580. The circuit is powered by two batteries and its frequency is basically given by C1.
Found in a 90s English documentation, this circuit consists of an RF detector for testing in RF...
This circuit is from a 1967 publication. It is possible to power a fluorescent lamp from a 12 V...
This transmitter influences an oscillator that modulates the transmitting stage and at the same...