[JRC] JST-245 PS Demise

[Wn4i]

Please dont trach it ......it might be good for me for parts ..
I have a JST 100
I have a JST 135
I have a JST 245
My favorite is the 135
Best Luck to you
Yves wn4i                     30 years for Motorola 2 way radios
Yves Pautard
5833 Dryden rd.
West Palm Beach
Florida 33415.....561-689-8819                           wn4i at arrl.net

----- Original Message ----- 
From: <k2kw-8 at adelphia.net>
To: "jrc" <jrc at mailman.qth.net>
Sent: Friday, September 22, 2006 10:45 AM
Subject: [JRC] JST-245 PS Demise


> I've been getting a few pesonal messages on my last posting, and thought I 
> would share some things from my conversation with Universal Radio, who is 
> the only JRC repair shop left in the USA.
>
> Many of the parts in the power supply are unique (proprietary) parts. 
> These
> unique parts are no longer available, even in Japan.  That's one of the
> reasons that lead JRC to stop making the radio - they could no longer get 
> the parts.
>
> So if you have a blown power supply, fixing it all depends on what's wrong 
> with your PSU.  If it's a common part, maybe it
> could be repaired.  If it's one of the unique parts, you will not be able 
> to get
> it repaired.
>
> I had a number of blown components, of which a few of them were in the 
> oscillator circuit.  Universal Radio didn't want to even begin to try 
> replacements due to the difficulty of getting a switching oscillator ckt 
> working.
>
> Ultimately, Universal Radio said my pwer supply cannot be fixed - JRC USA 
> even called Japan to see if
> they could get the parts.  No luck.  So they are sending my radio back
> unrepaired.
>
> Of course my timing was impecable!  About 1-2 weeks ago, Universal Radio 
> sold their 145/245 power supply they kept around for testing (scrounged 
> from broken 145/245's people didn't want to get repaired).  They got $450 
> for it!
>
> Unless someone on the list has an idea on an outboard 60v 30a power 
> supply, I will just strip out all the filters, monitor, etc (I have a 
> loaded one!) and sell them, and then sell the radio for parts - that is IF 
> somone wants it!  Otherwise, it goes in the trash...
>
> Now, that PS may not be so far fetched, as I remember that the Fin-Fett 
> DXpedition amplifiers used a 50v 50a switching power supply.
>
> 73, Kenny K2KW
>
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