(Topic ID: 257246)

Classic Stern 16B-6 Transformer Restoration

By ita47

1 year ago

Topic Stats

  • 62 posts
  • 16 Pinsiders participating
  • Latest reply 3 months ago by Poida
  • Topic is favorited by 14 Pinsiders


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#31 1 year ago

Not to get off topic, but how do transformers usually fail? A break in the secondary or primary winding?

#33 1 year ago
Quoted from pinballinreno:

Or a short in the windings usually caused by vibration (or contaminants like paint thinner or alcohol) scraping off the varnish on the wire allowing it to touch bare wire internally.

I have a gottlieb sys1 small transformer that I was told was bad but have not tested. If that is the case, is that something you can take apart, try to spray compressed air through, and visually verify windings then put back together with varnish redo etc. I mean maybe it is worth trying....

#37 1 year ago
Quoted from pinballinreno:

LOL, theres miles of wire inside a transformer !

yeah :/ I guess I just mean the visual ones with the paper off but like you said, probably not where a break would be. can you do a test to see if there is a break in the winding?

#39 1 year ago
Quoted from pinballinreno:

You need to know the resistance of a good transformer.
Then you can compare it.

Is that ever stated/stamped on the transformer somewhere? If they are pretty consistent for the model, a list of them would be good to have on pinside for anyone wanting to test. Unless this is on the pinwiki already.

9 months later
#54 3 months ago

holy moly does that look clean! nice work!

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