This low current source without a transformer is intended for applications where insulation is not important. The circuit has a 110 V (120 V) input and was found in old American documentation.
Found in a 1970 documentation this circuit makes use of components still common in the market. The...
August 2017 - Mouser Electronics announced the availability of a full range of Mean Well regulated DC-DC...
This circuit uses na Unijunction Transistor (UJT) to produce a modulation tone for several...