This circuit is an improvement over the previous one, using the same capacitor system as a sensor. We also found it in Radio Electronics from the 80s.
This circuit is for collectors. It is the circuit of one of the most popular transistor radios of the...
This circuit is from an April 2000 Poptronics. The magazine no longer exists, but the circuit can...
This circuit was found in a 1977 Radio Shack documentation. The unijunction transistor can be...