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NST primary question
Original poster: "harry by way of Terry Fritz <teslalist-at-qwest-dot-net>" <harry-at-prcn-dot-org>
I have unpotted a pair of 15/30 Allanson nst's that had direct shorts on th
110v side, upon inspection the capacitors had melted into an unrecognizable
mass and the windings look ok but the smell isn't right and it seems like
some of the winding is shiny copper (no enamel) the secondaries look ok so
i may attempt to make a primary winding.On previous disasemblies of
Allanson nst's the primary seems to be constructed of 2 windings,one of
heavy wire on the outside and an inner winding of slightly smaller guage wire.
My questions are:
If I decide to wind my own primary is it necessary to include the inner
winding ?
If the primary is toast does that mean the secondaries are toast ?
Could someone tell me what the Ohm reading should be of the secondaries and
primary once they are removed from the core ?
I don't believe I could wind a primary as good as the factory job so I was
thinking of removing 3 shunt plates per side and going 1 or 2 gauge sizes
smaller for the winding so there would be enough room twix core sections,
does this sound ok ?
Could some one tell me how many turns are required for the primary winding ?
Thank you
Lance