This circuit was obtained in old documentation, but it is valid for modern triacs that must be equipped with heat sink. The trigger element is an ordinary neon lamp.
This circuit is from an October 1963 Radio Electroncs. It uses a single 2N18383 transistor and a...
This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The...
A flash of light directed at the LDR causes the SCR to fire and the motor to be activated in the...