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.
This 6V regulator with FET was found in an old Electronic Design. FET and transistor admit modern...
Frequency Indicator (CB6342E) This simple circuit was found in an Exar publication from the 1970s....
The circuit shown in the figure differs from the previous one (CIR8909) in that it can be...