[Hallicrafters] Manual for SX-28 F.C.C.

[Asif Khan]

I happen to own a copy of the manual also .The one I have describes an EARLY SX-28 with  6SK7 tubes used for  both RF stages(later the 1st RF was upgraded to a 6AB7) and a SINGLE ended output using one 6V6 to save battery power. The front panel had a metal tag on it saying 'MODEL SX-28 FCC'.
A picture is also shown in COMMUNICATION RECEIVERS book by Raymond Moore .Chuck Dachis doesn't have any picture in his book looks like he doesn't own one ?
The RID (Radio Intelligence division) and FCC  used these rcvrs during WWII to monitor the airwaves .


Also own an SX-17F rcvr which uses a single ended 6F6 output .Been looking for a manual for that with NO luck so far !!
Regards,
Nick






-----Original Message-----
From: manualman at juno.com
To: kk7iz at cox.net
Cc: hallicrafters at mailman.qth.net
Sent: Sun, Oct 24, 2010 2:28 pm
Subject: Re: [Hallicrafters] Manual for SX-28 F.C.C.


I had heard that in the past and have seen references to that on the web
ut my manual marked SX-28 F.C.C., that included a schematic, shows a
air of 6V6's in the audio output. Never owned one of these receivers so
nly going by the documentation.
Pete, wa2cwa
On Sun, 24 Oct 2010 14:01:28 -0700 "Lloyd Godsey" <kk7iz at cox.net> writes:
 The SX-28 FCC model had a single 6V6 audio output tube, as opposed to 
 the 
 push pull 6V6's in the
 regular production radio. I know. I have one. Silver faced no less. 
 Any body 
 interested?
 Thanx
 Lloyd Godsey  KK7IZ
 kk7iz at cox.net
 480-620-7145
 www.kk7iz-parts.com
 www.lloydsdipsydumpster.com/
 
 --------------------------------------------------
 From: "Mack Rogers" <n4vgb at yahoo.com>
 Sent: Sunday, October 24, 2010 12:00 PM
 To: <hallicrafters at mailman.qth.net>
 Subject: Re: [Hallicrafters] Manual for SX-28 F.C.C.
 
 > Thanks Pete, that is what I had presumed but having never had an 
 > opportunity to inspect one with the FCC designation I was not 
 sure.
 >
 > N4VGB
 > Mack Rogers
 >
 >
 >
 > --- On Sun, 10/24/10, manualman at juno.com <manualman at juno.com> 
 wrote:
 >
 >> From: manualman at juno.com <manualman at juno.com>
 >> Subject: Re: [Hallicrafters] Manual for SX-28 F.C.C.
 >> To: hallicrafters at mailman.qth.net
 >> Date: Sunday, October 24, 2010, 1:46 PM
 >> As far as I could tell over the
 >> years, the SX-28 FCC is nothing more then
 >> a SX-28A. Spot checks using several schematics did not show
 >> any
 >> differences in wiring. There might be some minor variations
 >> in component
 >> parts (i.e. potted versus unpotted power transformer) but
 >> no revelations
 >> in design. Of course, over Hallicrafters life span, they
 >> were well known
 >> for not making formally documented circuit and part changes
 >> done on the
 >> production line.
 >>
 >> Pete, wa2cwa
 >>
 >> On Sun, 24 Oct 2010 08:30:32 -0700 (PDT) Mack Rogers 
 <n4vgb at yahoo.com>
 >> writes:
 >> > Other than the addition of the letters FCC to the end
 >> of the model
 >> > designation is there a real difference physical or
 >> electrical in
 >> > this model?
 >> >
 >> > N4VGB
 >> > Mack Rogers
 >> >
 >> >
 >> >
 >> >
 >> > --- On Sun, 10/24/10, Brian Goldsmith 
 <brian.goldsmith at echo1.com.au>
 >>
 >> > wrote:
 >> >
 >> > > From: Brian Goldsmith <brian.goldsmith at echo1.com.au>
 >> > > Subject: [Hallicrafters] Manual for SX-28 F.C.C.
 >> > > To: hallicrafters at mailman.qth.net
 >> > > Date: Sunday, October 24, 2010, 3:39 AM
 >> > > Greetings to all.
 >> > > I have come across an Operating,Alignment and
 >> Servicing
 >> > > Instructions for a
 >> > > model SX-28 F.C.C.
 >> > > I have not seen this on the web and could scan it
 >> to a .pdf
 >> > > file if there is
 >> > > sufficient interest.
 >> > >
 >> > > Let me know via the list.
 >> > >
 >> > > Brian G.
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