[Boatanchors] Morrow Modulation Question

Jeff Anderson jca1955 at sbcglobal.net
Wed Mar 18 19:55:36 EDT 2009


Thanks, Rick and Carl, for the recommendation.  I've just sent an email 
to Gary requesting a quote.

Best regards,

- Jeff, k6jca

Carl wrote:
> Low power mod xfmrs show on Ebay fairly often, it is then a matter of 
> matching size and impedances.
>
> If you want, the original can be rewound by a forum member.
> http://members.tripod.com/tubes_tubes_tubes/transformerrewindingservice/
>
> Carl
> KM1H
>
>
> ----- Original Message ----- From: "Jeff Anderson" 
> <jca1955 at sbcglobal.net>
> To: "Boatanchors" <boatanchors at mailman.qth.net>
> Sent: Wednesday, March 18, 2009 5:18 PM
> Subject: Re: [Boatanchors] Morrow Modulation Question
>
>
>> Many thanks for everyone's help and advice regarding my Morrow problem
>> of "light" AM modulation.  I believe that I've finally found the root
>> cause -- a shorted winding in the modulation transformer!  [I haven't
>> taken the transformer apart yet to verify, but this hypothesis best
>> explains the most recent measurements I've made on the transformer
>> performance itself.]
>>
>> Oh well -- what to do now?
>>
>> Anyone have any advice on rewinding a transformer?  (Anyone have another
>> Morrow xmtr, working or not, they'd like to part with?)
>>
>> And again -- thanks to all for your advice.  It was a huge help!
>>
>> - Jeff, k6jca
>>
>> http://k6jca.blogspot.com/
>>
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>



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