This circuit was found in documentation from the 1980s. The circuit uses several components of the time, which are uncommon today. We must not supply it with a transformerless power supply.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
It can be obtained from Mouser Electronics new evaluation module for 1A stepper motors control...
This circuit, found in a 1994 documentation, uses 20 A 2N5448 triacs or equivalent and should be...