This circuit was found in a Popular Electronics from the 90s. The circuit has temperature compensation. Coil and capacitors depend on the frequency at which the circuit will be used.
This circuit appears in other articles in this section, but it is very interesting. It is a...
This simple sweep generator circuit has been found in older documentation, but can still be easily...
This circuit is from Motorola documentation from the 70s. The transistors support modern...