[Kenwood] Re: TS-120-S

[John Parker]

Also found this;  Would it be possible to have someone rewind the
transformer?

John KD7KFT


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                        Kenwood Service Centers

   Kenwood Service Corporation             Kenwood Service Center, East
   2201 East Dominguez Street              829 Lynnhaven Parkway, Suite 130
   Long Beach, California 90801            Virginia Beach, Virginia 23452
   Telephone 1-310-639-5300                Telephone 1-804-340-1702

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BULLETIN # 831
MODEL: TS-120S
SUBJECT: ANT INPUT TRANSFORMER REPLACEMENT
      
     TS-120S Ant Input Transformer Replacement: New Part
     Supercedes bulletin 7/12/79
     
     Transceivers subject to strong static fields, high RF, or
     similar high current atmospheric discharges may suddenly
     exhibit low sensitivity on all bands. TX will not be affected.
     Suspect T1 on the RF unit, X44-1260-01.
     
     When replacing T1, L43,0696-35, check that the value of C20 is
     33pf. Early units may have a l5pf for C20, and may have T1 as
     L43-0696-05. In either case, replace the transformer with an
     L34-0929-15. If C20 is 15pf, replace it with a 33pf capacitor.
     Since T1 is a broadband transformer, no adjustment is necessary.
     
     In addition, add two lS1587 diodes after the transformer as
     shown to further protect the receiver.
     
     Installation time for this procedure is approximately 1/2 hour.
     



-----Original Message-----
From: kenwood-bounces at mailman.qth.net
[mailto:kenwood-bounces at mailman.qth.net] On Behalf Of Bryan Swadener
Sent: Wednesday, December 24, 2008 10:07 AM
To: kenwood at mailman.qth.net
Subject: [Kenwood] Re: TS-120-S

Hi OM,

It's certainly hard to find these parts for our 120s.
I believe your best bet is to find a donor rig (no,
you may NOT have mine hi).  There are a couple of
parts rigs on eBay (items 120353986290 &
170288410527).  By the description, it appears to
receive, so the part you need would be OK.  You may
also find the part/board/rig available on the various
ham sites.

vy 73,
Bryan WA7PRC

> Hello; I have a TS-120-S with a bad antenna input
> transformer on the rf  unit 
> ,x44-1260-01, the replacement part numbers I have,
> L43 -0696,05,15,35 and  
> L34-0929-15 have been discontinued at Parts.com and
> East coast. Is there another 
>  part that will work? or another supplier? any help
> will be greatly  
> appreciated.Thank You KB8JBP


      
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