This circuit, found in a 1958 magazine, is for reference only, since the components are not easy to find today. The transistors are germanium types and power supply is made by common cells.
This CW circuit was found in a Radio Amateur Today from the 890s. The CMOS circuit must be powered by...
This power supply, found in 2002 documentation, uses fixed 1 A regulators for the power output. The...
We found this circuit in Texas Instruments' Linear Circuits Applications. In the original it is...