This oscillator uses a small IF transformer taken from an old transistor radio. FET admits equivalents. The circuit can be used to calibrate radios.
This oscillator with the PLL 4046B was obtained from a 90s Radio Electronics. The circuit...
This protection circuit trips by quickly blowing the fuse in the event of an overcurrent. The circuit is...
This circuit is intended for the testing of junction FETs, providing several reading options...