[R-390] IF Amplifier

[Barry]

Reminds me of an old "King of the Hill" cartoon where Bobby finds a spark plug and then begins to fantasize that if he could find a frame, wheels, motor, pedals, and a steering wheel, he could finally have a go-cart.

Good luck finding those parts...

Thanks,
Barry - N4BUQ

----- Original Message -----
> From: "Nick England" <navy.radio at gmail.com>
> To: "R-390 HF Receiver List" <r-390 at mailman.qth.net>
> Sent: Monday, September 16, 2019 8:06:49 AM
> Subject: Re: [R-390] IF Amplifier
> 
> FWIW - Photos of Glenn’s unfinished IF deck at
> http://www.virhistory.com/ham/shelby-19/IMG_3490.JPG
> http://www.virhistory.com/ham/shelby-19/IMG_3491.JPG
> Cheers,
> Nick
> 
> On Mon, Sep 16, 2019 at 8:41 AM Les Locklear <leslocklear at hotmail.com>
> wrote:
> 
> > Glenn and group,
> >
> > That was a spare parts contract awarded to Communications Systems Corp. in
> > 1966  for audio modules. They also manufactured Veedor Root Counters
> > order/contract no. SM-C-249195. And, audio cw filters. They were located in
> > Morton Grove, Illinois.
> >
> > Glenn, look closer at the contract number. I have it listed as
> > FR-11-022-C-C-26418(B) That example was in a 1967 EAC s/n 4743.
> >
> > There are several other manufacturers that manufactured spare parts
> > modules under separate order/contract numbers. Stewart Warner, Clavier
> > Corp., and American Transformer Coil located in Richmond Hill, Long Island,
> > NY.
> >
> > Les Locklear
> >
> > ----- Original Message -----
> > From: Glenn Little WB4UIV <glennmaillist at bellsouth.net>
> > To: <r-390 at mailman.qth.net>
> > Sent: 9/15/2019 7:46:47 PM
> > Subject: [R-390] IF Amplifier
> >
> > ________________________________________________________________________________
> >
> > I have an IF Amplifier that was never completed.
> > It is part number SM-C-343621.
> > I have heard that there are two versions of the IF amplifier and suspect
> > that this is the first and was pulled from the assembly line when the
> > second or later version was approved.
> > There is another number that I do not recognize on the IF Amp.
> > FR-11-C22-C-4-26418(E), possibly a contract number.
> > If there were two versions if the IF Amplifier, what were the changes?
> > I would like to build this amp as if it were a kit to ensure all
> > resistors are in tolerance and the capacitors do not leak.
> >
> > Any ideas?
> >
> > 73
> > Glenn
> > WB4UIV
> >
> > --
> > -----------------------------------------------------------------------
> > Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
> > Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
> > QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
> >
> --
> Nick England K4NYW
> www.navy-radio.com
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