Power source for tubes (T384E)

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

Binary Indicator (CB6700E) This circuit was obtained from old documentation but can be used as a shield in a modern application. The SCR can be 106 series and a general-purpose transistor. a href="images/sto"
Binary Indicator (CB6700E) This circuit was obtained from old documentation but can be used as a...
Crossing Signal For Railroad Modeling 3 (CB3856E)
This circuit uses two sensors that are placed at the intersection of a miniature railroad, causing the LED...
Acoustic Delay Circuit (CIR25263E)
This delay circuit for a sound system was found in the December 1990 Radio Electronics magazine as part...