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We found this circuit in GE's 1977 semiconductor manual. The optical isolator uses an opto-SCR, and the lamp must be 25 W maximum. Only incandescent lamps should be used.
The simple transistor test shown in the figure can be powered by a 9V battery. The test is for...
This small amplifier, close to 1 W, was found in a 1963 documentation. The class B circuit uses...
The circuit shown in the figure uses 2 of the 4 NAND gates of a 4011 and is designed to produce short...