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.
MCP19124/5 Contains Independent Voltage and Current Control Loops Plus a Full Suite of...
This traditional timer setting can provide time intervals up to a few tens of minutes. The...
In the figure we have an inductance bridge for values between 1 and 30 uH at a frequency of 5 MHz....