[Shop-talk] Fog and Driving Lights

Neil Sherry neiljsherry at talktalk.net
Fri May 1 12:39:43 MDT 2020


Should work, I think. Just connect the first one to one light and the input of the second, then the other light to the output of the second relay.

What you are doing is effectively binary counting, stepping with each successive press of the switch:

00

01

10

11

00

…

Although I would question why you would want fog & spot lights on together – I wpuld have thought one or the other – it’s either foggy and you want the wide flat short beam or clear and you want the narrow longer throw.

Neil

 

 

From: Shop-talk <shop-talk-bounces at autox.team.net> On Behalf Of Jeff Scarbrough via Shop-talk
Sent: 01 May 2020 01:56
To: Shop-talk at autox.team.net
Subject: Re: [Shop-talk] Fog and Driving Lights

 

 

 

On Thu, Apr 30, 2020 at 5:47 PM Jim Stone via Shop-talk <shop-talk at autox.team.net <mailto:shop-talk at autox.team.net> > wrote:


Does anyone know if such a relay exists?  If not, is there a simple circuit that would make a standard relay work as described?

 

 If I recall correctly, a pair of old VW headlight dimming relays would be a period-correct solution.  Grounding the relay by pulling on the turn signal lever would flip-flop the relay between high beam and low beam.  Or, in your case, on or off.  The old relays had to have the headlights on to power them, you would need to figure out how to remind yourself to turn the lights off or use a relay on the ignition wire to control the power.

Or, use one of them high-falutin' electronic gadgets...

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