Dual tube receiver (T1600E)

This receiver employs two dual triode valves. Receiver is from a 1949 Radio Electronics. Power supply not provided.

() CB14409E 5V x 4 A Switched Converter
The circuit presented is from the Linear Applications Handbook of the National Semiconductor of...
Descending Timer (CB16612E)
This timer counts down the times until, at the end, it activates a relay. The programming time is...
Power control (CB23709E)
This power control with SCR was found in Radio Electronics from April 1966. The components are...