[Boatanchors] [HallicraftersRadios] HT32A bad transformer

[RAY FRIESS]

I have a 32 that I'm thinking of parting out.  Transformer is good.  Lots of good stuff for spares.  I have two 32 and two 37.  So I'm in good shape

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From: boatanchors-bounces at mailman.qth.net <boatanchors-bounces at mailman.qth.net> on behalf of Walt Cates <cateswa at msn.com>
Sent: Friday, June 18, 2021 12:53:12 PM
To: HallicraftersRadios at groups.io <HallicraftersRadios at groups.io>; BOATANCHOR QTH <boatanchors at mailman.qth.net>
Subject: Re: [Boatanchors] [HallicraftersRadios] HT32A bad transformer

I just updated the data on the 32 and 37 power transformers. I added the Hallicrafters part # and a couple notes.
HT-32 | WD0GOF<https://wd0gof.com/hallicrafters-radio/technical-discussions/ht/ht-32/>

HT-37 | WD0GOF<https://wd0gof.com/hallicrafters-radio/technical-discussions/ht/ht-37/>



 Walt Cates, WD0GOF
https://wd0gof.com/Hallicrafters

A majority of acceptance is not proof of correctness.
https://wd0gof.com/bible-study/commentaries/


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From: HallicraftersRadios at groups.io <HallicraftersRadios at groups.io> on behalf of Bob Albert via groups.io <bob91343=yahoo.com at groups.io>
Sent: Thursday, June 17, 2021 8:45 PM
To: HallicraftersRadios at groups.io <hallicraftersradios at groups.io>; HallicraftersRadios at groups.io <HallicraftersRadios at groups.io>
Subject: Re: [HallicraftersRadios] HT32A bad transformer

I think there is a differrence in one of the windings between the 32 and the 37.

On Thursday, June 17, 2021, 05:21:55 PM PDT, ray ffriess <rayfrijr at msn.com> wrote:


Do the 32 and 37 use the same transformer??

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From: HallicraftersRadios at groups.io <HallicraftersRadios at groups.io> on behalf of Bob Albert via groups.io <bob91343=yahoo.com at groups.io>
Sent: Thursday, June 17, 2021 2:14:05 PM
To: hallicraftersradios at groups.io <hallicraftersradios at groups.io>; HallicraftersRadios at groups.io <HallicraftersRadios at groups.io>
Subject: Re: [HallicraftersRadios] HT32A bad transformer

If nothing is connected to any secondary, the problem is the transformer.  Can you measure winding resistances or, better, inductances?  Removing some of the loads from some of the secondaries isn't enough; you have to remove them all before you can verify that you have a bad transformer.

Blackened wires do not prove anything.

It's a lot of work to remove all the loads but you have to do that anyway if you are going to pull the transformer.

Bob K6DDX

On Thursday, June 17, 2021, 01:05:02 PM PDT, stephen white <sswhite at mchsi.com> wrote:


I am pretty certain the power transformer is bad in my newly acquired HT32A...Blows fuses with tubes removed and 60/40 uf cap removed.  So am wondering if it has the 5v to HV short?  At the bottom of the transformer bell housing the wires coming out are blackened for an inch or two...

Can a mere mortal rewind one of these??  Or am I relegated to try and buy a new one or find a good donor??  What are my options??

Steve  NU0P
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