The time of this timer depends on C1. The circuit was found in the July 1994 Electronics Now magazine. The supply voltage depends on the relay and can go up to 12 V.
This circuit appears in other articles in this section, but it is very interesting. It is a...
This circuit works directly connected to the network and special care must be taken with its...
The oscillator indicated can produce signals from 50 kHz (approximately) to 7 MHz, depending only...