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Forum Index : Electronics : Mab1's wiseguy inverter build - transformer options
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phil99 Guru  Joined: 11/02/2018 Location: AustraliaPosts: 1979 |
It depends on how much spare time you can afford. If the outer winding has been wrapped in a few layers of plastic film the it may be possible to break the potting mix away in chunks. First use a hacksaw to cut through the plastic container every few cm and peel it away. Then an exploratory cut to see how deeply buried the windings are. Make a couple of parallel cuts to that depth 1 cm apart and another pair of cuts at a right angle to them and test how hard it is to lever that block out. If that isn't too hard larger blocks may be possible. If the outer winding isn't wrapped you may have to sacrifice it. About 4 decades ago we reverse engineered epoxy potted modules by soaking them in a chemical solvent for a week. Unfortunately I don't remember the name. Anyway it may well be banned now, it was very aggressive stuff, had to be used outdoors and could only be kept in a glass bottle. It ate every thing else. |
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Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5064 |
I took to it with a sharp chisel, gently taking off thin layers. Struck coper. No plastic wrap unfortunately. All good, I'll put it aside and strip it down one day for a few bucks of copper and the iron core. The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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