Paraphase amplifier (T389E)

This 6C5 tube circuit was found in a modern tube design manual. The circuit applies to other equivalent triodes.

Handling Circuit Gain x Speed (CB1553E)
The circuit shown in the figure has elements for maximum gain at maximum speed. By setting the...
PC resistance meter (CB20544E)
We found this circuit in English documentation for PCs from 1996. The ZN448 is a very uncommon...
Relaxation Oscillator Using PUT (MSB075E)
This is a simulation of a Relaxation Oscillator using a programmable unijunction transistor (PUT). The...