Modulator Amplifier (V1574E)

This circuit is from a 1938 tube manual. Transformers are the critical components. Component values are given.

Invisible rifle pulse LASER (CB6372E)
Found in an American 1980s documentation, this circuit generates high-intensity pulses for a...
Powerful FM Transmitter (CB17410E)
This powerful FM transmitter was found in a 2002 documentation. The output transistors must be...
Weak Signal Differential Detector (CB6665E)
This circuit was obtained from a 1966 documentation. The transistors are of the time. The circuit...