This amplifier for signals in the 2 m range that corresponds to 150 MHz was found in an American documentation from the 1980s. The FET can be a BF245.
This circuit generates pulses at a frequency that can be adjusted by a potentiometer. The circuit is...
This oscillator uses a small IF transformer taken from an old transistor radio. FET admits...
Found in a 1970 EEE, this circuit generates signals that depend on the C1 capacitor. Transistors are...