[Boatanchors] HX-50 ZBZ MOD

[Al Parker]

Hi Bob,
    I think I have a manual for the HX-50A which has factory typewritten 
pages added which (IIRC) show the changes to make the 50 into an A.  May 
have scanned it sometime in the past, I"ll ck to see if I have it digitized, 
can do it if I don't, or just make cc's.
    Thanks for your help on the Vintage Sideband Net Sun.  Propagation sure 
was lousy.
73,
Al, W8UT
New Bern, NC
www.boatanchors.org
www.hammarlund.info

"there is nothing -absolutely nothing- half as much worth doing as simply 
messing about in boats."
   Ratty, to Mole


----- Original Message ----- 
From: "Robert Nickels" <ranickel at comcast.net>
To: "Magoo" <magoo at isp.ca>
Cc: <boatanchors at mailman.qth.net>
Sent: Wednesday, July 22, 2009 5:19 PM
Subject: Re: [Boatanchors] HX-50 ZBZ MOD


> Magoo wrote:
>> Also, there was an article in CQ Magazine Dec. 1964 dealing with mods to 
>> the
>> HX-50-I believe power output issues, bias and such.  Anyone have this
>> available?
>>
>>
> Bill,
>
> I can scan and send this  article to you if you still need it, but be
> advised, it's just a one-page piece about converting the final from 6DQ5
> to an 8236.  I can attest that the 8236 is a heckuva tube, having just
> restored a Clegg Apollo Six amplifier that uses a pair of them to put
> out 325 watts.  But it's an expensive tube, and you wouldn't see nearly
> as much impact as simply adding a 1 kw class linear.
>
> I've also recently restored a beautiful HX-50, but I'm not thrilled with
> the audio quality.  It's one of the later production runs that
> incorporates a number of revisions that went into the HX-50A, but aren't
> shown on the manual I have.  So I'm also looking for any docs on this
> version, or the mods that were incorporated into later production models.
>
> 73, Bob W9RAN
>
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