This circuit is for analog TV video signals and was found in the March 1988 issue of Radio Electronics magazine. The circuit uses a Maxim integrated circuit that can still be found.
Currents of a few tens of milliamps can be obtained with this simple source that makes use of an...
This circuit was obtained in a 1990 English magazine. The circuit can be assembled with equivalent power...
This circuit is recommended by Texas Instruments in the datasheet of the TL317, equivalent to...