I have found, in the parts boxes, what appears to be a potted power
xrmr. Here is the information I can get from the side of the unit:
Tresco No. P560 (not sure if Tresco is/was a company or not)
Working voltage to gnd.
PRI. A-B,---------- 165V
SEC. H1-H2,-------- 10V.
SEC. P1-P2,-------- 406 V.

This unit may have come from a non-working NC57. Can anyone tell me
what it is supposed to be used for? Does anyone have a use for this
xfrmr?

I have both a working and a non-working NC-57 and can assure you that
is not the transformer used in the NC-57 receiver. Sounds like you have
some kind of a buck-boost transformer. I have never seen a transformer
with specs showing the working voltage to ground. Pretty strange unit.
Paul

wrote:
I have both a working and a non-working NC-57 and can assure you that
is not the transformer used in the NC-57 receiver. Sounds like you have
some kind of a buck-boost transformer. I have never seen a transformer
with specs showing the working voltage to ground. Pretty strange unit.

You must not work with milspec equipment much - VERY common to see such
ratings on equipment made for the government...


best regards...
--
randy guttery

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