[Boatanchors] NC-173 transformer question(s)

[jeremy-ca]

If you mean oozing all over the wiring and bottom plate then it has been 
seriously abused. It may or may not survive but Id suggest that you measure 
the DC current draw and fix it if excessive.

A little bit of ooze right around where the wires exit is normal with age as 
they do run a bit warm. Id recommend a bucking xfmr or Variac to get the AC 
down around 110-112V for long life and reduced heat.

Carl
KM1H


----- Original Message ----- 
From: "WØQFC" <erastber at tampabay.rr.com>
To: <National at mailman.qth.net>; <FLBOATANCHORS at yahoogroups.com>; 
<boatanchors at mailman.qth.net>
Sent: Wednesday, February 20, 2008 9:39 AM
Subject: [Boatanchors] NC-173 transformer question(s)


> Again, I want to ask the collective opinion of the various list members 
> about my 'problem':
>
> The power tranny is oozing black tar.
>
> There is some on top around the mounting flanges and some under the 
> chassis that has dripped on parts and wires.
>
> The voltages are correct and the receiver operates ok. There is a normal 
> temp rise after it has been on for one hour (+).
>
> The BIG questions:
>
> Is this a indication of impending failure or is it normal for a part that 
> is this old (62 years)?
>
> Would it work to remove the tranny and some way seal it with epoxy or 
> something else?
>
> If this tranny is failing then it brings up the question of is it worth it 
> to even restore this receiver, especially when you consider a re-wind cost 
> of $100+. . . .
>
> I will appreciate your collective opinion and
>
> TIA
>
>
>
>
>
>
> 73
>
> Gene, WØQFC
>
> www.w0qfc.com
>
> _______________________________________________
>