Synchronized Triac Switch (CB26127E)

This zero-crossing circuit was found in the 1989 Radio Electronics Experimenter. The Triac must be controlled according to the load.

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3.5 MHz Loop Antenna (CB4758E)
This loop antenna was found in a 1990s documentation. The circuit includes a field strength meter. The...
Shield for MSX (CB18698E)
If the reader has an old MSX still working, it can be used as a microcontroller for your robotics...
Microammeter Amplifier (CB19584E)
This transistorized stage of an old documentation aims to increase the sensitivity of a...