[AMRadio] SX-28 Experts Needed


beethoven1 at sbcglobal.net beethoven1 at sbcglobal.net
Fri Aug 21 10:37:09 EDT 2009


----- Original Message ----- 
From: "WA5AM" <ars.w5ami at gmail.com>
To: "Discussion of AM Radio in the Amateur Service" 
<amradio at mailman.qth.net>
Sent: Friday, August 21, 2009 5:21 AM
Subject: [AMRadio] SX-28 Experts Needed

Brian I have completely restored 8 SX 28's and 3 SX 28 A's...Make sure you 
also do the four RF sections...I will see if I can identify the the 
resistors you mention below..

Lou


>I am getting ready to recap and replace most all resistors in an SX-28 I
> just got a few days ago.  There are several resistors that visibly show 
> over
> heating and indicate way high.  Two of them I've not been able to ID based
> on color (burned) or placement in the circuit.
>
> This one obviously has red for the first band, but the others are not so
> evident:
> http://w5ami.net/sx28/V15_basres.jpg
>
> Here is the other:
> http://w5ami.net/sx28/V5_badres.jpg
>
> For those that are familiar with the SX-28, the locations should be 
> evident
> in these photos.  I hope someone out there can tell me which resistors 
> these
> are, and what their values are.
>
> Thanks & 73,
> Brian / wa5am
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