Found in Popular Electronics, this sophisticated short-wave receiver requires a lot of skill from an eventual assembler. The coils are commercial types of the time, used in commercial radios.
The presented circuit serves as a voltage reference for instrument adjustment. The diode used as a...
This circuit was found in a 1980s General Electric documentation. The circuit uses an operational of...
This circuit was found in a 1977 Radio Shack documentation. The circuit is TTL, which must be...