Test circuit with bridge (CB22530E)

This bridge-biased transistor test circuit measures gain in the range 0 to 300. Circuit is from Radio Electronics June 1952.

Shield for MSX (CB18698E)
If the reader has an old MSX still working, it can be used as a microcontroller for your robotics...
Locator transmitter (CB8729E)
This circuit was found in a 1993 Electronics Hobbyst Handbook. The circuit operates in the FM...
SCR Simulator (CB16615E)
In the figure we have the way to simulate an SCR using two complementary general-purpose...