MOSFET Amplifier Stage (CB26315E)

Found in a 1990s Popular Electronics, this circuit uses a small transformer matched to the impedance of the speaker being driven.

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Short Circuit Protection (CB17050E)
We found this circuit in a 1997 documentation. It can be used in any common 12 V source and has...
Temperature Alarm (CB13148E)
In the figure we show how to use one of the four comparators in the LM336 in a temperature alarm. As...
AC Motor Reversing Circuit (CB15408E)
We found this configuration in the ON Semiconductor thyristor manual. The triacs depend on the...