This TTL circuit found in the September 1996 issue of Electronics Now magazine doubles the frequency of a rectangular signal. The power supply must be 5 V.
We found this voltmeter in a 1977 Radio Shack documentation. The integrated circuit can be the...
This circuit with a maximum current of 50 mA was found in the August 1998 issue of Electronics Now magazine....
This circuit was found in the July 1994 issue of Electronics Now magazine. The relay can be rated...