Dual tube receiver (T1600E)

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

Transistorized Timer (CB18012E)
This good timer using only transistors was obtained in a 2003 documentation. The circuit has 6...
Wireless AM Microphone (CB16392E)
This is the project found in a 1981 publication, but it is still viable. It is a simple AM...
6 V Regulator For Dynamos (CB1573E )
The circuit shown in the figure is indicated for alternative sources of energy, such as those...