Paraphase amplifier (T389E)

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

QPL9065 Low Noise Amplifier
May 2017 - Qorvo QPL9065 low-noise amplifiers can be purchased from Mouser Electronics for a...
Transformerless Power Supply (MSB040E)
This circuit shows how an inductive capacitance can be used to reduce the voltage of Power supply...
High Voltage Power Supply (CB1223E)
This small inverter came out in an Argentine magazine from the 1970s. It can also be assembled with...