My weekend homework project

115

01:23:32

This is representation of a latching circuit that I have built at work using 4 IDEC RU4S-A110 relays.  This version is a 24v DC version using RU4S-D24 minus the indication lamps built into the relay. I'm going to try building an equivalent circuit using transistors to better understand transistors.  

The lamp is actually a speaker that sounds with lamps indicating the alarm condition on a different circuit.

The relays I'm using are 4 SPDT's on a common relay core with a green LED and resistors to indicate a closed condition.  

published 10 years ago

kaivanveldhoven

10 years ago

Ouchhh 24VDC on a speaker..

JeffreyH

10 years ago

Not Quite, 120V AC

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