This simple two-transistor FM transmitter was found in the November 1991 issue of Radio Electronics magazine. The circuit has a 2 + 2 turn coil of 28-gauge wire with a diameter of 1 cm.
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...