We found this circuit in the August 1994 issue of Electronics Now magazine. The circuit is based on the now uncommon CMOS 4046. The frequency range is given by C1.
This oscillator uses a small IF transformer taken from an old transistor radio. FET admits...
We found this circuit in an American documentation from the 90s. The circuit produces a 1 kHz...
This circuit uses two JFET such as the BF244 or BF245 and has an excellent gain with small...