Hi Mitchell!
Well, I think if you have a shorted turn in a flyback that that would
cause overheating and all sorts of eddy currents, leading to the rapid
destruction of the coil...
There are thousands of turns in the secondary windings....I don't see
how one short turn would show up in a resistance check.
John :-#)#
Mitchell Rohde wrote:
>
> Er... I still don't nesc buy it. A shorted winding or two on the primary
> will be very obvious with a meter, and it may be trickier on the
> secondary....
>
> but a wrap or two on the secondary won't make the flyback unusable... and
> if it is a short across (for instance) a significant portion of the
> secondary coil, the resistance will show it.
>
> The only failure mode I can think of that a live test (with a high freq.
> signal) might get above and beyond a meter test is a bit of insulation in
> the secondary that has broken down (fine under no power, but a high
> voltage arc in the secondary when in operation).
>
> Not to belabor the point, but...
>
> Mitch
-- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) mailto:jrr_at_flippers.com, web page http://www.flippers.com "Old pinballers never die, they just flip out."Received on Mon Aug 17 18:25:54 1998
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