This power supply for model railroad was found in a February 1961 Radio Electronics Magazine. The transistor must be mounted on a heatsink and the transformer is a 1,5A secondary winding.
January 2017 - Mouser Electronics is introducing new, ultra-thin Vishay Displays OLED modules. The new...
The presence of C1 in this circuit from a 1977 publication, reduces surges. The circuit is for 30 V...
We do not know exactly what sound a flying saucer makes, or if it makes a sound! But this is not...