Power source for tubes (T384E)

This experimental bench source was found in a modern book on tubes. The components used can be easily obtained.

MSX joystick on PC (CB16852E)
This article is old, from 1994. But, for those who have an old PC and want to use a joystick from...
Power FET and 555 Flasher (CB17507E)
This flasher for power loads such as lamps and LEDs uses a 555 as an oscillator. The supply...
Adjustable power supply CA3140 (CB25232E)
The output current is of the order of 100 mA maximum, but the transistor used can be changed for...