Found in an Australian documentation from 1991, this circuit was sold in a kit at the time. It is a small FM transmitter with a very common configuration, also found in other projects on this site.
This circuit is from the time of the tubes, being indicated to operate with transmitters turning off...
This table with the antenna design allows to size the antenna according to the frequency of the...
We found this circuit in the National Semiconductor Audio Handbook of 1977. The circuit produces...