This power supply was found in a RCA publication from the 1970s. The circuit uses transistors from that time. Modern equivalent transistors can be used.
Mouser Electronics is now shipping DA14585, a kit for the development of voice remote control...
The presented circuit causes an LED to flash with voltages of 85 to 200 V continuous and has a low...
This circuit for analog video signals was found in a March 1988 Radio Electronics. The Maxim...