[SEL] Buzz coil repair

[Reg Ingold]

A buzz coil is only a normal primary/ secondary setup, as per the usual auto 
thing.
The difference is that the incoming low voltage is interrupted by a set of 
low voltage points.
The incoming current activates the core and makes it a magnet. This pulls 
the points open and breaks the curcuit. Field collapses, no longer a magnet, 
back to start.
So, we get the buzz.
Ok, now to check.the system.
With a meter, check the secondary windings. Earth to plug lead. If you show 
continuity, then thats ok.If the needle shows open circuit, its stuffed!
Primary windings should show continuity and almost no resistance.
Again, open circuit, stuffed.
BUT the main part of these setups was the low voltage points.
If they were dirty, corroded, etc. and current could not pass, then the 
whole sequence could not happen.
So much so that replacement points were/are available.
Ya gotta come back to simple basics on this.
Then it becomes easy to sort the troubles.
Ok, outa here. Hope what I said helps.
Reg
Reg & Marg Ingold.
> Newcastle, NSW, Australia.
> randmingold at hotkey.net.au
> http://www.oldengine.org/members/randmingold

----- Original Message ----- 
From: "Jim O'Hagan" <jdohagan at comcast.net>
To: "'The SEL email discussion list'" <sel at lists.stationary-engine.com>
Sent: Sunday, October 04, 2009 3:53 PM
Subject: [SEL] Buzz coil repair


> Hi, like most of you ,I have a couple/several buzz coil paper-weights. A
> couple are really pretty paper -weights but still useless. Is there a 
> method
> to bring one back to life? Are any of the  parts buried in the tar
> available ? I guess there is a primary/secondary coil and a capacitor and
> internal wiring inside.. Are they repairable or not worth the effort. Any
> ideas greatly appreciated. Jimmy O'Hagan, Novato Ca. 415 892 0236
>
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