[R-390] R-390 Digest, Vol 104, Issue 11
Clemens Ostergaard
clemenso at gmail.com
Wed Dec 5 03:51:12 EST 2012
Good find, Frank! And thanks for scanning it. Would be grateful if you
would put up the rest of the scans on the website.
Best,
Clemens S.Ostergaard
(R-390 of the 51-contract, s/n 1713)
On Wed, Dec 5, 2012 at 8:58 AM, <r-390-request at mailman.qth.net> wrote:
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> Today's Topics:
>
> 1. Re: 1954 Air Force R-390 "Charts and Diagrams" (Jeff Adams)
> 2. Re: Heat Death -JX-28, Leary (Al Parker)
> 3. Re: Heat Death -JX-28, Leary (Todd, KA1KAQ)
> 4. Re: Heat Death -JX-28, Leary (Les Locklear)
> 5. Re: Heat Death -JX-28, Leary (Les Locklear)
> 6. Re: Green gear (KA9EGW)
> 7. Re: Is your R390A Power Cord Connected Correctly ? (Ken Harpur)
>
>
> ---------- Forwarded message ----------
> From: Jeff Adams <physicist at cox.net>
> To: frank hughes <fsh396ss at gmail.com>
> Cc: r-390 at mailman.qth.net
> Date: Tue, 04 Dec 2012 19:01:30 -0500
> Subject: Re: [R-390] 1954 Air Force R-390 "Charts and Diagrams"
> Nice. Can you scan it and put it up on Al's website?
>
> 73, Jeff KG4RZM
> www.jeffreyladams.com
>
>
>
> On 12/4/2012 6:36 PM, frank hughes wrote:
>
>> Hi,
>> I came into possession of an interesting R-390 manual that I have not seen
>> before.
>>
>> It is a 7 June 1954 Air Force "Charts and Diagrams", version C-5-15-(d)
>> Rev
>> 20 Sept 1956.
>>
>> The manual has notes and circuit coloring that look like what we would do
>> in class while trying to reinforce
>> the lessons and technical information, so that we could master the
>> technology.
>>
>> It is very legible, but the paper is old and darkening, brittle. (I know
>> that guy...)
>>
>> My wife works at an engineering place that has fancy scanners.
>> The smaller pages were able to fit on a color scanner, came out great (but
>> they are large files)
>>
>> The 40" fold-out pages were done on a black & white only scanner, so the
>> wonderful work that Airman Sullivan did
>> coloring the circuit components and paths is not evident.
>>
>> I have put the cover of the manual here:
>>
>> http://i180.photobucket.com/**albums/x257/fish1_07/R-390/**cover.png<http://i180.photobucket.com/albums/x257/fish1_07/R-390/cover.png>
>>
>> If you click on "options" there is a "download" selection.
>>
>> If there is any interest expressed, I will see if it is possible to put
>> all
>> the manual pages on the same site.
>> (Smallest file is 7.4Mb, largest is 71.8 Mb)
>>
>> 73
>> Frank
>> KJ4OLL
>> ______________________________**______________________________**__
>> R-390 mailing list
>> Home: http://mailman.qth.net/**mailman/listinfo/r-390<http://mailman.qth.net/mailman/listinfo/r-390>
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>>
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>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>
>
>
> ---------- Forwarded message ----------
> From: Al Parker <anchor at ec.rr.com>
> To: Les Locklear <leslocklear at hotmail.com>
> Cc: R-390-List <r-390 at mailman.qth.net>
> Date: Tue, 04 Dec 2012 19:11:46 -0500
> Subject: Re: [R-390] Heat Death -JX-28, Leary
> Hi Les, et al,
> I just sent Dave some info and a link to my JX-28/R-620/FRR, I
> know you've seen it before:
> <http://www.boatanchors.org/**SP-600-JX-28.htm<http://www.boatanchors.org/SP-600-JX-28.htm>
> >
> it's pretty grubby looking there, it's getting better, slowly.
> Todd knows I have it, too.
> BTW, my Leary is very stable after 5-10 min. warmup. Easy to
> listen to a SSB net on 20m for an hour with rarely touching it.
> <http://www.boatanchors.org/**LearySP-600.htm<http://www.boatanchors.org/LearySP-600.htm>
> >
> 73,
>
> Al, W8UT
> www.boatanchors.org
> www.hammarlund.info
>
> "There is nothing -- absolutely nothing -- half so much
> worth doing as simply messing about in boats"
> Ratty, to Mole
>
> On 12/4/2012 5:27 PM, Les Locklear wrote:
>
>> Well, the JX-28/R-620/FRR is quite rare. 100 built. Obviously a purpose
>> built receiver for the Signal Corps on this contract, Order No.
>> 25693-Phila-53 . Only reference to it in manuals is an addendum to the TM
>> 11-851 dated October, 1953. George has the feelers out on it, we talked
>> about it, I know of two of them.
>>
>> Interesting, that John Leary also used dual voltage regulators on most of
>> his re-engineered SP-600’s. Very stable receivers.
>>
>> Les
>>
>> From: Todd, KA1KAQ
>> Sent: Tuesday, December 04, 2012 3:18 PM
>> To: Les Locklear
>> Cc: R-390-List
>> Subject: Re: [R-390] Heat Death
>>
>> On Mon, Dec 3, 2012 at 9:59 PM, Les Locklear <leslocklear at hotmail.com>
>> wrote:
>>
>> The original tube for the FCU (frequency control unit) was a metal
>> tube, a 6AC7, later versions used a 6AH6 7 pin miniature glass tube.
>>
>>
>> Ah, I see. Learn somethin' new every day! Of course, unlike you
>> upper-crust SWLs who have seen and used at least one of everything, I've
>> never seen anything that....new, which seems odd to be saying about old
>> tube gear. I figured it might be one of the sub-contractor deals like
>> Northern Radio or such. Clearly I need to get out more!
>>
>> Now, if I can just get some dial time on that Leary you've got squirreled
>> away down there professor, I can die a happy man. (o:
>>
>> de Todd/'Boomer' KA1KAQ/4 (No kielbasa or lutefisk here)
>>
>> BTW, George is looking for a -620 if you stumble onto a pallet load
>> somewhere. He wanted my -320 but I declined.
>> ______________________________**______________________________**__
>> R-390 mailing list
>> Home: http://mailman.qth.net/**mailman/listinfo/r-390<http://mailman.qth.net/mailman/listinfo/r-390>
>> Help: http://mailman.qth.net/mmfaq.**htm<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
>>
>>
>
>
> ---------- Forwarded message ----------
> From: "Todd, KA1KAQ" <ka1kaq at gmail.com>
> To: anchor at ec.rr.com
> Cc: R-390-List <r-390 at mailman.qth.net>
> Date: Tue, 4 Dec 2012 20:56:40 -0500
> Subject: Re: [R-390] Heat Death -JX-28, Leary
> On Tue, Dec 4, 2012 at 7:11 PM, Al Parker <anchor at ec.rr.com> wrote:
>
> >
> > BTW, my Leary is very stable after 5-10 min. warmup. Easy to
> > listen to a SSB net on 20m for an hour with rarely touching it.
> > <http://www.boatanchors.org/LearySP-600.htm>
> >
>
> I tried not to drool too much when viewing this at Shelby. It was hot and
> dehydration, an issue. But what a COOL receiver. It's always nice to see
> the visually-tamer Leary example. I think the pair of NC-400s he combined
> would make my eyes bleed.
>
> I bet he would've had fun with a -390A!
>
> (o:
>
>
>
> ---------- Forwarded message ----------
> From: Les Locklear <leslocklear at hotmail.com>
> To: "Todd, KA1KAQ" <ka1kaq at gmail.com>, <anchor at ec.rr.com>
> Cc: R-390-List <r-390 at mailman.qth.net>
> Date: Tue, 4 Dec 2012 20:01:36 -0600
> Subject: Re: [R-390] Heat Death -JX-28, Leary
> A pair of 390A’s would Leary have made it a 780B? Those NC-400’s he made
> into a single chassis was dubbed a NC-800..............
>
> He had an imagination. Some of his receivers worked perfectly, others
> needed lots of diagnostic work and tweaking. He wasn’t much on a good rf
> alignment on the SP-600’s, nor the dial indexing.........
>
> Les
>
> From: Todd, KA1KAQ
> Sent: Tuesday, December 04, 2012 7:56 PM
> To: anchor at ec.rr.com
> Cc: Les Locklear ; R-390-List
> Subject: Re: [R-390] Heat Death -JX-28, Leary
>
> On Tue, Dec 4, 2012 at 7:11 PM, Al Parker <anchor at ec.rr.com> wrote:
>
>
> BTW, my Leary is very stable after 5-10 min. warmup. Easy to
> listen to a SSB net on 20m for an hour with rarely touching it.
> <http://www.boatanchors.org/LearySP-600.htm>
>
>
> I tried not to drool too much when viewing this at Shelby. It was hot and
> dehydration, an issue. But what a COOL receiver. It's always nice to see
> the visually-tamer Leary example. I think the pair of NC-400s he combined
> would make my eyes bleed.
>
> I bet he would've had fun with a -390A!
>
> (o:
>
>
>
> ---------- Forwarded message ----------
> From: Les Locklear <leslocklear at hotmail.com>
> To: <anchor at ec.rr.com>
> Cc: R-390-List <r-390 at mailman.qth.net>
> Date: Tue, 4 Dec 2012 20:03:17 -0600
> Subject: Re: [R-390] Heat Death -JX-28, Leary
> I have a Pdf copy (6 pages) of the JX-28/R-620/FRR if anybody is
> interested. Not much information.
>
> Les
>
> -----Original Message----- From: Al Parker
> Sent: Tuesday, December 04, 2012 6:11 PM
> To: Les Locklear
> Cc: Todd, KA1KAQ ; R-390-List
> Subject: Re: [R-390] Heat Death -JX-28, Leary
>
> Hi Les, et al,
> I just sent Dave some info and a link to my JX-28/R-620/FRR, I know
> you've seen it before:
> <http://www.boatanchors.org/**SP-600-JX-28.htm<http://www.boatanchors.org/SP-600-JX-28.htm>
> >
> it's pretty grubby looking there, it's getting better, slowly.
> Todd knows I have it, too.
> BTW, my Leary is very stable after 5-10 min. warmup. Easy to listen to
> a SSB net on 20m for an hour with rarely touching it.
> <http://www.boatanchors.org/**LearySP-600.htm<http://www.boatanchors.org/LearySP-600.htm>
> >
> 73,
>
> Al, W8UT
> www.boatanchors.org
> www.hammarlund.info
>
> "There is nothing -- absolutely nothing -- half so much
> worth doing as simply messing about in boats"
> Ratty, to Mole
>
> On 12/4/2012 5:27 PM, Les Locklear wrote:
>
>> Well, the JX-28/R-620/FRR is quite rare. 100 built. Obviously a purpose
>> built receiver for the Signal Corps on this contract, Order No.
>> 25693-Phila-53 . Only reference to it in manuals is an addendum to the TM
>> 11-851 dated October, 1953. George has the feelers out on it, we talked
>> about it, I know of two of them.
>>
>> Interesting, that John Leary also used dual voltage regulators on most of
>> his re-engineered SP-600’s. Very stable receivers.
>>
>> Les
>>
>> From: Todd, KA1KAQ
>> Sent: Tuesday, December 04, 2012 3:18 PM
>> To: Les Locklear
>> Cc: R-390-List
>> Subject: Re: [R-390] Heat Death
>>
>> On Mon, Dec 3, 2012 at 9:59 PM, Les Locklear <leslocklear at hotmail.com>
>> wrote:
>>
>> The original tube for the FCU (frequency control unit) was a metal
>> tube, a 6AC7, later versions used a 6AH6 7 pin miniature glass tube.
>>
>>
>> Ah, I see. Learn somethin' new every day! Of course, unlike you
>> upper-crust SWLs who have seen and used at least one of everything, I've
>> never seen anything that....new, which seems odd to be saying about old
>> tube gear. I figured it might be one of the sub-contractor deals like
>> Northern Radio or such. Clearly I need to get out more!
>>
>> Now, if I can just get some dial time on that Leary you've got squirreled
>> away down there professor, I can die a happy man. (o:
>>
>> de Todd/'Boomer' KA1KAQ/4 (No kielbasa or lutefisk here)
>>
>> BTW, George is looking for a -620 if you stumble onto a pallet load
>> somewhere. He wanted my -320 but I declined.
>> ______________________________**______________________________**__
>> R-390 mailing list
>> Home: http://mailman.qth.net/**mailman/listinfo/r-390<http://mailman.qth.net/mailman/listinfo/r-390>
>> Help: http://mailman.qth.net/mmfaq.**htm<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
>>
>>
>
>
>
> ---------- Forwarded message ----------
> From: "KA9EGW" <ka9egw1 at britewerkz.com>
> To: "'Roy Morgan'" <k1lky at earthlink.net>
> Cc: r-390 at mailman.qth.net
> Date: Wed, 5 Dec 2012 01:27:35 -0600
> Subject: Re: [R-390] Green gear
> Other than allowing storage inside the radio, what purpose does the
> convex/concave aspect serve? As I understand it this gear transmits no
> power; it merely serves to lock two others relative to each other. Or am I
> completely off base?
>
> -----Original Message-----
> From: Roy Morgan [mailto:k1lky at earthlink.net]
> Sent: Tuesday, December 04, 2012 10:37 PM
> To: KA9EGW
> Subject: Re: [R-390] Green gear
>
>
> On Dec 4, 2012, at 4:09 PM, KA9EGW wrote:
>
> > If one knew the diametral pitch [DP] and tooth count on this gear,
> > sourcing a replacement should be easy [famous last words...].
>
> The gear is saucer shaped (and has a "D" shaped hole, I think - not sure on
> that part).
>
> Not a standard part.
>
> Roy
>
>
> Roy Morgan
> k1lky at earthlink.net
> K1LKY Since 1958 - Keep 'em Glowing!
>
>
>
>
>
>
> ---------- Forwarded message ----------
> From: Ken Harpur <igloo99nz at yahoo.co.nz>
> To: "R-390 at mailman.qth.net" <r-390 at mailman.qth.net>
> Cc:
> Date: Wed, 5 Dec 2012 17:57:56 +1000
> Subject: Re: [R-390] Is your R390A Power Cord Connected Correctly ?
> >
> > 2) On the chance you find a European color coded line cord installed,
> here are the colors:
> >
> > LINE (US) Black = (EU) Brown
> > COMMON (US) White = (EU) Blue
> > GROUND (US) Green = (EU) Green/Yellow
> >
> > (If there are other color schemes found overseas, someone let me know,
> please.)
> >
>
> Yes there is at least one other that I know of, prior to the introduction
> of the EU colour code here in Australia and New Zealand there was or is
> this (and I say is because I've found the older colour codes on some
> equipment that's relatively modern)...
>
> LINE = PHASE (AU/NZ) Red
> COMMON = NEUTRAL (AU/NZ) Black
> GROUND = EARTH (AU/NZ) Green
>
> Also, we don't use the terms Line, Common and Ground...we generally refer
> to them as Phase, Neutral and Earth.
>
> Regards,
> Ken
>
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