This circuit from a Radio Electronics from December 1974 was used in color televisions of the time. It serves as a reference for restoration work. The circuit is of the ultrasonic type.
With the name of transitube we find this MW receiver in documentation from the 50's. It uses a...
This type of circuit is interleaved between a microphone and a transmitter in order to improve the...
We found this circuit in an Electronics Now magazine from June 1995. The transformer has a primary...