This power source for Gas Laser was obtained in a 90’s Electronic Design. The circuit uses a switched regulator from the time. Equivalents can be used.
E) This audio filter was found in the August 1993 issue of Radio Electronics magazine. It cuts low...
This defrost alarm starts from an interesting idea. A small magnet on an ice stone is trapped at the...
This circuit was obtained from a Linear Technology manual from the 1990s. The components may have...