Power source for tubes (T384E)

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

800 W dimmer (CB5277E)
We found this circuit in an American publication from the 1990s. The triac must be equipped with a heat...
Simple heads or tails (CB9807E)
This TTL circuit uses LED indicators and must be powered by a voltage of 5 V. The capacitor...
Piezoelectric Driver 2 (CB21148E)
This circuit uses an integrated CMOS having the frequency determined by the resistors and...