This circuit is from 1973 documentation. The transformer has 500 mA of current and the transistor can be the TIP32 mounted on a heat radiator.
This circuit slows down a pulse applied to its input. The delay depends on the capacitor and...
September, 2017 - Mean Well DC-DC regulators from 10 to 30 W are already available on Mouser...
This circuit was found in Siliconix documentation from the 1980s. Common comparators or...