Using a MAX644 this circuit was found in the April 1989 issue of Radio Electronics magazine. The circuit is for a 5 V voltage and 50 mA current output.
This circuit is a variation of the previous one, indicating a voltage range, for example 11.5 to...
082E) We started with a simple Hartley oscillator circuit using a bipolar transistor that can...
This circuit was found in the June 1980 issue of Radio Electronics magazine. The circuit uses an...