Using the 723 integrated circuit, this circuit was found in an article on power supplies in the August 1971 Radio Electronics magazine. The transistor may be the BD136 on a heatsink.
This circuit uses an oscillator that generates a signal of approximately 1450 kHz to test...
Found in a 90s Maxim's documentation, this circuit applies to almost any comparator. | Clique na...
27 MHz Transmitter (CB14008E) This circuit was found in a Japanese publication from the 1970s. The...