Power source for tubes (T384E)

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

Product Detector (CB22036E)
Intended for SSB and CW reception, this circuit was found in old English documentation. The...
Even Number Divider (CB6532E)
This circuit of an EDN divides the input pulse frequency by even values. The circuit is TTL and...
Up to 30 MHz RF preamplifier (CB20227E)
This circuit from the 80s uses an integrated circuit from the time. The CI is difficult to find...