Found in a 1970’s documentation, this circuit uses components of the time, uncommon today.
The resistor of this circuit has typical values between 470 ohms and 2k2. We found this circuit in a...
This circuit was suggested by an article in the April 1988 Radio Electronics magazine. The...
This circuit converts voltages from 5 to 12 V at voltages of 100 to 400 V. The transformer has a...