With a 475 V supply, this amplifier published in Radio Electronics magazine in January 1958 offered good power. The amplifier used 4 tubes.
The circuit presented consists precisely of an oscillator (multivibrator) that takes advantage of the 4...
The critical components of this project from a 1978 publication are the transformers, which can be...
This circuit can switch signals in the 3.5 to 30 MHz band. We found it in a QST magazine from the...