wiring in "pilot" lights

[B92 8NW]

I'm building a control panel with a few power outlet plugs with separate switches for each one to run various accessories. I want two indicator lights for each outlet - a red pilot light and a green pilot light - the green to indicate that power is present but the switch is turned off - and red to indicate that it is turned on. Like sump pump controller systems in basements - when you turn the pump on the green light (usually labelled 'idle' or 'off') extinguishes and the red one comes on ('pump running').

So basically I want each of the stable positions (on and off) indicated by a pilot light.

Is it possible to achieve this neatly using relays or do I need to build a bistable multivibrator circuit for each outlet to control the warning lamps?

[PhilipA]

I think its easy.
Just get a A-B relay or switching relay and add it to the output side of the switch. No power =A (geen light), power =B (red light).
Then wire the lights to earth from A and B.
Regards Philip A

[B92 8NW]

I think its easy.
Just get a A-B relay or switching relay and add it to the output side of the switch. No power =A (geen light), power =B (red light).
Then wire the lights to earth from A and B.
Regards Philip A

:blush:whoops!

I thought I had it solved by using two relays - one normally closed and one normally open... totally forgot about a 5 pin relay. That's easy:D

[JDNSW]

In most cases it can be done even more simply - use a single pole double throw switch instead of an on/off switch - the "off" position switches on the power available light and the load on light simply parallelled with the load - no relays or anything else.

John

[LandyAndy]

Visit a Jaycar or Dick Smiths shop.
You should be able to get a diy LED kit to do the job.LEDs use next to no power.
Andrew