This circuit can keep a set of lamps on for up to 1 minute, time given by C2 and R2 that can be changed. The load depends on the relay. The circuit is old, from 1988 documentation, but totally viable today.
We find this circuit in a 555 application manual. The circuit generates triangular signals that...
This circuit produces two signals with inverted phases. One is taken for the emitter of Q1 and the...
July 2017 - Mouser Electronics already has in stock the new SCRs from the SJxx40x high temperature series from...