JFET amplifier stage (CB7523E)

This circuit was found in a 1982 Maplin documentation. The configuration applies to almost any JFET.

FET Low Frequency Oscillator (CB19252E)
This circuit is from an old technical documentation from Spain. The circuit uses a FET that is...
Alarm tone generator (CB8445E)
Found in a documentation from the 90's, this circuit already includes an amplification stage. The...
RF Mixer (CB4123E)
This circuit, called Kames Dandy, can mix signals from a wide range of frequencies and is...