[Hallicrafters] SX-42 RUN's

[HallicrafterSX28 at aol.com]

Hi Doug
The main difference lies in the 2nd detector /3rd IF stage .Serials  
5XXXX-6XXXX are RUN1 .7XXXX-8XXXX is the 2nd RUN and finally 9XXXX and beyond  
that RUN3 .Of course there might be is some overlap.Meaning a rcvr starting 
with  8XXXX could be RUN  3 etc .Accordingly there are 3 different service  
manuals .
 
AMK"Nick"
 
In a message dated 4/11/2009 7:30:37 AM Pacific Daylight Time,  
iluznst at yahoo.com writes:


Karl,

How do you determine "an early run" from the s/n? Mine  is HA-80018 and it 
has all the service mods done to  it.

Doug


--- On Fri, 4/10/09, HallicrafterSX28 at aol.com  <HallicrafterSX28 at aol.com> 
wrote:

> From:  HallicrafterSX28 at aol.com <HallicrafterSX28 at aol.com>
> Subject: Re:  [Hallicrafters] SX-42 info needed
> To:  Hallicrafters at mailman.qth.net
> Date: Friday, April 10, 2009, 4:53  PM
> Yes, you've got yourself an early version Run1
> Sx-42.I've  got one sitting  
> here right in front of me on the bench.
>  There 3 different SX-42 manuals out there .the one that
> applys to this  one  
> is dated 'June 1947'
> Regards
>  AMK"Nick"
>  
> In a message dated 4/10/2009 4:48:16 PM  Pacific Daylight
> Time,  
> km1h at jeremy.mv.com  writes:
> 
> How are  the run # determined? The one that just  arrived is
> serial HA 
> 63007 and  there are no run stamps  on the chassis...unless
> this is Run  1.
> 
>  Carl
> KM1H
> 
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