This circuit with 117 V output was found in a 1969 Electronic Design. Drive transistors admit equivalents and information about transformers is not given.
The old computers like the MSX of the 80's had the programs recorded on cassette tapes in the form...
This circuit drive an LED with constant current determined by the values of the resistors of 10...
This simple experimental circuit drives LEDs in sequence. Only transistors are used, and the power...