Power source for tubes (T384E)

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

BD7F100 and BD7F299 Isolated Flyback Converters (COM049E)
August 2016 –It can be purchased from Mouser Electronics the new converters BD7F100 and BD7F200...
20 W Amplifier (CB4251E)
This amplifier with complementary output transistors delivers a 20 W load at 80 ohms. We find it...
600 Hz Rejection Filter with 741 (CB1456E)
This circuit is from an American documentation about filters. The operational amplifiers are 741...