Based on a unijunction transistor, this circuit was found in the January 1994 issue of Electronics Now magazine. The frequency range depends on C1, which can be changed.
This small transmitter operates in the medium wave range. T1 is an output transformer for...
We found this circuit in the Radio Electronics magazine of May 1977. The circuit has the frequency...
The use of field effect transistors in this circuit improves its performance. This configuration is from a...