This is the analog part of the previous circuit with the pressure sensor for the altimeter. The circuit is from a Radio Electronics from October 1990.
This unijunction transistor oscillator is intended for Morse code practice. The circuit is from an...
The capacitors of this 80's circuit must be ceramic and the transistor can be any PNP that...
Placed near a common receiver, this oscillator is intended to generate a beating signal to receive...