This flasher circuit consists of an astable multivibrator with the frequencies given by the capacitors. The circuit is from 1965 using light bulbs, but LEDs can be used. Power comes from 4 batteries.
The presented circuit activates a relay when a telephone call occurs. The relay can be used to...
SIDACs are not yet common components in power applications that involve voltage tripping. However,...
This solid-state relay (SSR) or shield was found in a 1995 Electronics Now. The transistor can be...