[R-390] John's R 390A article MORE??
Norman Ryan
nnryann at yahoo.com
Wed May 15 11:31:53 EDT 2013
Hi, Glenn,
Nick England has a whole bunch of stuff, much of it on Navy gear, here:
http://www.virhistory.com/ham/hobbies.html
It's a start!
73 de Norman, KG4SWM
--- On Wed, 5/15/13, Glenn Scott <wa4aos at aol.com> wrote:
> From: Glenn Scott <wa4aos at aol.com>
> Subject: [R-390] John's R 390A article MORE??
> To: r-390 at mailman.qth.net
> Date: Wednesday, May 15, 2013, 5:31 AM
>
> I enjoyed the article that John posted regarding R 390A's
> used during the early era of Satellites.
> Technology efforts now days are often Global events with
> many Countries contributing to the projects.
> Just consider how jumbo jets are built by a conglomeration
> of different Countries and disciplines now.
> However, there was a time not long ago that most of us
> remember well. Where US companies were doing amazing
> R&D and manufacturing technology that is still a marvel
> of engineering and scientific brilliance today.
>
> That got me wondering how many other articles/pics or other
> postings of R 389, R390, R 390A, R391, R392 and R648
> receivers
> might be tucked away in the files of readers of this list.
> Surely, there must be other application articles out there
> beyond what we find on the Internet.
> I believe other readers of this list would like to see those
> kinds of articles as well.
> Perhaps a consortium of articles/pics could be compiled into
> a Y2K type format. A dedicated, actual applications of these
> receivers
> that we all covet!!! Even old photo's of Communication rooms
> on ships and elsewhere, Spook photos, if they exist, Photo's
> with R392 in the back of jeeps.
> Pics of some of the manufacturing sites of these receivers.
> Does anyone know if any of these receivers made into
> submarines? I suspect due to the weight, not many or any
> made it into aircraft applications other than the somewhat
> rare R648.
>
> We have covered the technical side of things well but the
> application side should be important to archive too.
>
> Any thoughts???
>
> 73,
> Glenn WA4AOS
> DSM Labs (dot com)
>
>
>
>
>
> -----Original Message-----
> From: r-390-request <r-390-request at mailman.qth.net>
> To: r-390 <r-390 at mailman.qth.net>
> Sent: Tue, May 14, 2013 9:30 pm
> Subject: R-390 Digest, Vol 109, Issue 18
>
>
> Send R-390 mailing list submissions to
> r-390 at mailman.qth.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://mailman.qth.net/mailman/listinfo/r-390
> or, via email, send a message with subject or body 'help'
> to
> r-390-request at mailman.qth.net
>
> You can reach the person managing the list at
> r-390-owner at mailman.qth.net
>
> When replying, please edit your Subject line so it is more
> specific
> than "Re: Contents of R-390 digest..."
>
>
> Today's Topics:
>
> 1. Re: 17 MHz Crystal (Gordon)
> 2. Re: 17 MHz Crystal (Barry)
> 3. Re: 17 MHz Crystal (Barry)
> 4. Re: Caps (John Flood)
> 5. Re: 17 MHz Crystal (Bob Camp)
> 6. Re: 17 MHz Crystal (Bob Camp)
> 7. Re: 17 MHz Crystal (Bob Camp)
> 8. Re: 17 MHz Crystal (Barry)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 14 May 2013 10:32:46 -0700
> From: Gordon <gordon at n6wk.com>
> To: r390 reflector <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID: <5192753E.7050309 at n6wk.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Well, I took the crystal apart and found the problem.
> http://www.n6wk.com/R-390A/17Mhz-Crystal.JPG
>
> There is No repairing this one. LOL
>
> Gordon
> N6WK
>
>
> On 5/14/2013 6:47 AM, Steve Hobensack wrote:
> > Usually a bad crystal can be repaired. dismantle and
> remove the crystal. Soak
> everything is soap and water. I have found that degreaser
> spray does not work as
> good as soap and water. Use a toothbrush. rinse several
> times, final rinse use
> distilled water. Also check electrical continuity between
> the pins and contact
> plates. Dry the crystal with a clean cotton dish towel. Use
> a hair dryier on the
> holder. It works most of the time for me. It even improves
> chirpy/lazy crystals.
> > Steve N8YE
>
>
> >
> ______________________________________________________________
> > R-390 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/r-390
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:R-390 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 14 May 2013 14:12:13 -0400 (EDT)
> From: Barry <n4buq at knology.net>
> To: r390 reflector <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID:
> <2035825643.28061242.1368555133862.JavaMail.root at md01.knology.synacor.com>
>
> Content-Type: text/plain; charset=utf-8
>
> Maybe you could have two 8.5Mc crystals? <grin>
>
> BTW, I did have a 17.000 but a previous owner wrote 16.996
> on it. It would
> probably have worked, though.
>
> 73,
> Barry - N4BUQ
>
>
> > Well, I took the crystal apart and found the problem.
> > http://www.n6wk.com/R-390A/17Mhz-Crystal.JPG
> >
> > There is No repairing this one. LOL
> >
> > Gordon
> > N6WK
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 14 May 2013 15:51:43 -0400 (EDT)
> From: Barry <n4buq at knology.net>
> To: r390 reflector <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID:
> <846931412.28108986.1368561103984.JavaMail.root at md01.knology.synacor.com>
>
> Content-Type: text/plain; charset=utf-8
>
> Technically, I suppose that would be two 34MHz crystals...
>
> Barry - N4BUQ
>
> > Maybe you could have two 8.5Mc crystals? <grin>
> >
> > BTW, I did have a 17.000 but a previous owner wrote
> 16.996 on it. It
> > would probably have worked, though.
> >
> > 73,
> > Barry - N4BUQ
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 14 May 2013 14:25:13 -0700 (PDT)
> From: John Flood <kb1fqg at yahoo.com>
> To: "r-390 at mailman.qth.net"
> <r-390 at mailman.qth.net>
> Subject: Re: [R-390] Caps
> Message-ID:
> <1368566713.35444.YahooMailNeo at web84504.mail.ne1.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> Greetings,
>
> I was cleaning out the computer and came across the
> following document.
> ?Interesting photos of a couple of R-390A's in a commo
> shelter. ?If I posted it
> here ages ago and forgot, you are all welcome to make fun of
> me as I now begin
> to enter the old buzzard stage in life.
>
> http://www.nro.gov/history/csnr/programs/docs/prog-hist-03.pdf
>
>
> John Flood
> KB1FQG
>
> ------------------------------
>
> Message: 5
> Date: Tue, 14 May 2013 19:03:47 -0400
> From: Bob Camp <ham at kb8tq.com>
> To: Gordon <gordon at n6wk.com>
> Cc: "R-390 at mailman.qth.net
> Group" <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID: <479A9619-1DA0-42CA-8F8E-CC11756533A3 at kb8tq.com>
> Content-Type: text/plain; charset=us-ascii
>
> Hi
>
> That's a late model crystal. Those mounts were not in use
> when the radio was
> originally designed.
>
> Bob
>
> On May 14, 2013, at 1:32 PM, Gordon <gordon at n6wk.com>
> wrote:
>
> > Well, I took the crystal apart and found the problem.
> > http://www.n6wk.com/R-390A/17Mhz-Crystal.JPG
> >
> > There is No repairing this one. LOL
> >
> > Gordon
> > N6WK
> >
> >
> > On 5/14/2013 6:47 AM, Steve Hobensack wrote:
> >> Usually a bad crystal can be repaired. dismantle
> and remove the crystal. Soak
> everything is soap and water. I have found that degreaser
> spray does not work as
> good as soap and water. Use a toothbrush. rinse several
> times, final rinse use
> distilled water. Also check electrical continuity between
> the pins and contact
> plates. Dry the crystal with a clean cotton dish towel. Use
> a hair dryier on the
> holder. It works most of the time for me. It even improves
> chirpy/lazy crystals.
> >> Steve N8YE
>
>
> >>
> ______________________________________________________________
> >> R-390 mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/r-390
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:R-390 at mailman.qth.net
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >>
> >
> >
> ______________________________________________________________
> > R-390 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/r-390
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:R-390 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 14 May 2013 20:06:58 -0400
> From: Bob Camp <ham at kb8tq.com>
> To: Steve Hobensack <stevehobensack at hotmail.com>
> Cc: "R-390 at mailman.qth.net
> Group" <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID: <0A38F610-A6AC-4005-B86B-77AB4C862A05 at kb8tq.com>
> Content-Type: text/plain; charset=us-ascii
>
> Hi
>
> This may work for pressure holder / FT-243 type crystals.
> It's not a real good
> idea on a solder sealed crystal like the 17 MHz part in the
> R-390A. The 17 MHz
> blank is so thin that anything close to a toothbrush will
> destroy it.
>
> Bob
>
> On May 14, 2013, at 9:47 AM, Steve Hobensack <stevehobensack at hotmail.com>
> wrote:
>
> > Usually a bad crystal can be repaired. dismantle and
> remove the crystal. Soak
> everything is soap and water. I have found that degreaser
> spray does not work as
> good as soap and water. Use a toothbrush. rinse several
> times, final rinse use
> distilled water. Also check electrical continuity between
> the pins and contact
> plates. Dry the crystal with a clean cotton dish towel. Use
> a hair dryier on the
> holder. It works most of the time for me. It even improves
> chirpy/lazy crystals.
> > Steve N8YE
>
>
>
> >
> ______________________________________________________________
> > R-390 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/r-390
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:R-390 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 14 May 2013 20:11:21 -0400
> From: Bob Camp <ham at kb8tq.com>
> To: Barry <n4buq at knology.net>
> Cc: "R-390 at mailman.qth.net
> Group" <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID: <CA1F0AEC-0843-4A8D-AB04-64B41A829264 at kb8tq.com>
> Content-Type: text/plain; charset=us-ascii
>
> Hi
>
> Actually it's still two 17 MHz crystals. A jumper from the
> unconnected post to
> the unconnected electrode likely would get it to oscillate
> (sort of). By the
> way, I'm not in any way suggesting doing this.
>
> Bob
>
> On May 14, 2013, at 3:51 PM, Barry <n4buq at knology.net>
> wrote:
>
> > Technically, I suppose that would be two 34MHz
> crystals...
> >
> > Barry - N4BUQ
> >
> >> Maybe you could have two 8.5Mc crystals?
> <grin>
> >>
> >> BTW, I did have a 17.000 but a previous owner wrote
> 16.996 on it. It
> >> would probably have worked, though.
> >>
> >> 73,
> >> Barry - N4BUQ
> >
> ______________________________________________________________
> > R-390 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/r-390
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:R-390 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 14 May 2013 19:50:42 -0500
> From: Barry <n4buq at knology.net>
> To: Bob Camp <ham at kb8tq.com>
> Cc: "R-390 at mailman.qth.net
> Group" <r-390 at mailman.qth.net>
> Subject: Re: [R-390] 17 MHz Crystal
> Message-ID: <E1A2EBB7-27A3-45C9-B7B2-9AE5072AD5DB at knology.net>
> Content-Type: text/plain;
> charset=us-ascii
>
> So, it's the thickness that matters more than overall size,
> correct?
> Barry - N4BUQ
>
> Sent from my iPad
>
> On May 14, 2013, at 7:11 PM, Bob Camp <ham at kb8tq.com>
> wrote:
>
> > Hi
> >
> > Actually it's still two 17 MHz crystals. A jumper from
> the unconnected post to
> the unconnected electrode likely would get it to oscillate
> (sort of). By the
> way, I'm not in any way suggesting doing this.
> >
> > Bob
> >
> > On May 14, 2013, at 3:51 PM, Barry <n4buq at knology.net>
> wrote:
> >
> >> Technically, I suppose that would be two 34MHz
> crystals...
> >>
> >> Barry - N4BUQ
> >>
> >>> Maybe you could have two 8.5Mc crystals?
> <grin>
> >>>
> >>> BTW, I did have a 17.000 but a previous owner
> wrote 16.996 on it. It
> >>> would probably have worked, though.
> >>>
> >>> 73,
> >>> Barry - N4BUQ
> >>
> ______________________________________________________________
> >> R-390 mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/r-390
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:R-390 at mailman.qth.net
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >
>
>
> ------------------------------
>
> _______________________________________________
> R-390 mailing list
> R-390 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390
>
>
> End of R-390 Digest, Vol 109, Issue 18
> **************************************
>
>
> ______________________________________________________________
> R-390 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/r-390
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:R-390 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
More information about the R-390
mailing list