We found this circuit in a magazine 73 from the 90's. It is a circuit indicated for radio-amateur transmitters with the frequencies determined by the sets of coils.
This ttransistor test was found in a 1987 documentation. It is a simple oscillator that allows to...
This circuit was found in documentation from the 90s. Its purpose is to dial a programmed number...
We found this amplifier with high input impedance and low capacitance, using FET, in a...