This Power supply sources from 500 to 1,000 mA according the transformar and was found in a publication of the year 1958. The diodes can be now the 1N4004 and the transistor should be mounted on a heatsink.
This sophisticated power supply from the 80s uses components from the period, which makes it...
We found this small shortwave transmitter circuit in a 1994 documentation. The frequency of the...
This circuit generates a signal up to a few megahertz depending only on the LC resonant circuit...