This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
This simple CMOS touch switch was obtained in a 1987 publication. All components are common and the...
The load controlled by this circuit depends on the triac used. The circuit is from Electronics Now magazine...
This didactic circuit from a 1977 Radio Shack documentation shows how to use the 741 as a...