This type of configuration, which appears elsewhere in this section, was found in a 1965 publication by General Electric. The circuit is half-wave and can be built with equivalent SCRs.
This circuit is from an English publication from 1973, but can be easily assembled today. 2N718 can...
The integrated circuits used in this 1989 project are uncommon today, including the IF coil that...
We found this receiver for the 144 MHz band in a European publication from the 1970s. The circuit...