Wattmeter (CB23581E)

This circuit is from a Radio Electronics magazine from December 1958. The indicator instrument is analog type and R1 must be 2W carbon power type.

90 to 150 MHz receiver (CB20230E)
This simple super-regenerative receiver was found in American documentation from the 1980s. The...
MOSFET Progressive Power Supply (CB19373E)
We have already explored this configuration in several projects on our website. What the circuit does...
Transformer Audio Output Stage (CB18304E)
This circuit with only one transistor was found in Japanese documentation from the 1960s. The...