[Amps] WTB: Amp supply LK-500 Filament Transformer

R. David Eagle kb8nnu at yahoo.com
Sat Feb 13 15:10:37 PST 2010


Thanks for the tip, Jim!  That did it and now we're working once again.  It took a little brain surgery to get into it but it was obviously a cold solder joint from the center tap and the lead coming out of the secondary!  I just hope Murphy stays away during the next contest!

Thanks again,

Dave
KB8NNU




________________________________
From: James Colville <jimw7ry at gmail.com>
To: R. David Eagle <kb8nnu at yahoo.com>
Cc: amps at contesting.com
Sent: Sat, February 13, 2010 2:48:36 PM
Subject: Re: [Amps] WTB: Amp supply LK-500 Filament Transformer


"dig" the center tap out of the transformer and re-solder it. You may have to peel some paper back to do it.

Give it a try!
73
Jim W7RY


 
On Sat, Feb 13, 2010 at 11:32 AM, R. David Eagle <kb8nnu at yahoo.com> wrote:

Hello all...A couple weeks ago I posted a message to the group about losing my grid/plate current and finally found that it was a loose wire on the center tap of the secondary on the filament transformer....and let me tell you that it is an annoying problem to find!!!
>
>So now I am in search of a replacement.  If anyone has a filament transformer (pref. Dahl) for an Amp Supply LK-500NT, please drop me an email.
>
>Thanks,
>
>Dave
>kb8nnu
>
>
>
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