<VV> simple corsa clock question

[jvhroberts at aol.com]

 The diode is very worthwhile. The points get dirty from arcing, and the point debris then gets into the clock mechanism. The diode stops all of that. 

 

John Roberts
 

 

-----Original Message-----
From: Ramon Rodriguez III <corvairgrymm at gmail.com>
To: Jim Simpson <simpsonj at verizon.net>
Cc: virtualvairs at corvair.org
Sent: Thu, Mar 31, 2011 6:47 pm
Subject: Re: <VV> simple corsa clock question


I was thinking about doing the diode mod, but on the other hand since I

found both of my Corsa clocks had stopped with the points open it seems

getting dirty killed them, not the points getting burnt.



I saw Clarks has a diode kit for them.



Ray "Grymm" Rodriguez

Lake Ariel, PA



On Thu, Mar 31, 2011 at 6:14 PM, Jim Simpson <simpsonj at verizon.net> wrote:



> One modification you can make that will help the longevity of the clock is

> to add a diode across the electrical contacts to suppress the arcing.  Any

> common rectifier diode should work.  Just connect it with the "band" end

> (the cathode) to the "+" (battery) side and the other end to ground.  This

> diode will shunt the reverse current induced by the electromagnet when the

> contacts open that would otherwise cause an arc and gradually burn the

> contacts.

>

> And yes, the clock runs on the full 12 volts.

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