[R-390] R-390 Digest, Vol 79, Issue 25
bernie nicholson
vk2abn at bigpond.net.au
Thu Nov 25 17:53:14 EST 2010
I have three 390A Rx s and I have used AR88 cases , ARR88s are still
relatively cheap in the order of 200$ , I have kept the cases and resold
the Receivers as RACKmounts ,and got the cases for 20$ There is a
Bottom panel which I remove and the 390 s get good ventilation , all the
screw holes line up for the case mounting and they work and look good
regards Bernie N VK2ABN ----- Original Message -----
From: <r-390-request at mailman.qth.net>
To: <r-390 at mailman.qth.net>
Sent: Friday, November 26, 2010 4:01 AM
Subject: R-390 Digest, Vol 79, Issue 25
> Send R-390 mailing list submissions to
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> Today's Topics:
>
> 1. Re: Hammond cabinets (wli)
> 2. Re: Hammond Cabinets (Richard)
> 3. Re: R-390 Digest, Vol 79, Issue 24 (Richard Green)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 24 Nov 2010 10:05:54 -0800 (PST)
> From: wli <wli98122 at yahoo.com>
> Subject: Re: [R-390] Hammond cabinets
> To: R-390 at mailman.qth.net
> Message-ID: <893010.79821.qm at web110103.mail.gq1.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> Yes, heat build up is definitely an issue best addressed up front. To this
> end, I elected to go a cheaper route: remove top and bottom covers, stack
> units one on another using a pair of grey-painted 2x4's placed fore-aft
> and with shallow kerfs cut to lock on the front panel edges.... and have
> the entire receiver stack enclosed in a short 19 inch rack. The front
> panels have zero stress applied to them, and are bolted in. Each front
> panel is separated from its neighbor by an pen half inch seam. Obviously,
> taking out the lowest unit is a real pain!
>
> Ran into a nifty temp monitor among the thousands out there for under $4
> Check them out at sureelectronics.net. Runs off 5vdc and is the prettiest
> one I have come across. I went kinda crazy and ordered 6 for misc PC's and
> my Macs and my 390's.
>
> W. Li
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 24 Nov 2010 12:23:04 -0600
> From: Richard <theprof at texoma.net>
> Subject: Re: [R-390] Hammond Cabinets
> To: r-390 at mailman.qth.net
> Message-ID: <4CED5808.6090403 at texoma.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I have my Dittmore-Fremuth R-390A in an custom build oak cabinet with
> equipment slides. There are ventilation slots on the top and bottom
> near the front and a 5" fan with a filter on the rear drawing air into
> the cabinet. IERC tube shields are on all the tubes. Airflow is very
> good top and bottom. Everything runs cool according to my thermistor
> probe. The fan and filter are Mil-Surplus. I also added a metal
> bulkhead on the back with pass-through connections for the audio, IF,
> and antenna. The same done to a Hammond cabinet may not be authentic
> but would still look MIL-SPEC.
>
> These things are getting old and just like me don't like extreme heat
> anymore (I grew up on the edge of the desert in West Texas.)
>
> 73 de Richard W5SRB
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 24 Nov 2010 10:45:19 -0800 (PST)
> From: Richard Green <k7yoo at yahoo.com>
> Subject: Re: [R-390] R-390 Digest, Vol 79, Issue 24
> To: r-390 at mailman.qth.net
> Message-ID: <206566.36751.qm at web65804.mail.ac4.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> With CNC and plasma cutting equipment available for adding ventilation
> holes I
> never really thought to mention them. Obviously they would be required,
> and I
> rightly assumed everyone in the group was smart enough to realize that. I
> have
> also used Heathkit cabinets from the Mohawk/Marauder/Apache/DX100B series.
> They
> look great but take a fair amount of modification to the mounting area,
> removal
> of spot welds/rear panel, and rear support for the receiver chassis. NO
> R390
> should hang from its panel. My mention of the Hammond cabinet was merely
> to
> provide an attractive and economical option to the $350 originals. I
> currently
> have an SP600 in one of them and it works and looks well. Probably the
> best area
> to cut vents is on the bottom. A plasma cutter with a carpenters square
> for a
> guide makes neat undistorted cutouts and barely scorches the paint.
>
> Most body shops have these, and we have one in our plant for doing window
> and
> vent cutouts for machines and electrical boxes. Mods that used to be
> expensive
> and difficult are now easy and affordable. I even made an engraved SX73
> panel
> from scratch--a chunk of aluminum and a little programing. I think
> generating
> the measurements took more time than it did to machine.
> Have a great Thanksgiving!
> Skip
>
>
> ________________________________
> From: "r-390-request at mailman.qth.net" <r-390-request at mailman.qth.net>
> To: r-390 at mailman.qth.net
> Sent: Wed, November 24, 2010 11:01:16 AM
> Subject: R-390 Digest, Vol 79, Issue 24
>
> Send R-390 mailing list submissions to
> r-390 at mailman.qth.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
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> or, via email, send a message with subject or body 'help' to
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> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of R-390 digest..."
>
>
> Today's Topics:
>
> 1. Hammond Cabinets (Richard Green)
> 2. Re: Hammond Cabinets (Ron.K3PID)
> 3. Re: Hammond Cabinets (Richard Loken)
> 4. Re: Hammond Cabinets (Barry)
> 5. Re: Hammond Cabinets (James Young)
> 6. Re: Hammond Cabinets (Jeff Adams)
> 7. Re: Hammond Cabinets (Randy and Sherry Guttery)
> 8. Re: R390a cabinet (Barry)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 23 Nov 2010 09:15:54 -0800 (PST)
> From: Richard Green <k7yoo at yahoo.com>
> Subject: [R-390] Hammond Cabinets
> To: R-390 at mailman.qth.net
> Message-ID: <455157.7308.qm at web65819.mail.ac4.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> The Hammond P/N for cabinets to fit R-390, R 274, etc is :
> RCBS1901017GY2
> 19" x 10.50 panel, 17" deep
> This comes with some blank panels, hardware and is a semi-gloss gray.
> There are
> other finishes available but this is the one that I would consider the
> easiest
> to either leave as is or repaint. I have purchased at least 6 of them for
> various receivers. They look good and are around $160. They can be ordered
> from
> any Hammond distributor, including Fair Radio I'm sure.
> Skip
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 23 Nov 2010 13:29:02 -0600
> From: "Ron.K3PID" <ron.k3pid at sbcglobal.net>
> Subject: Re: [R-390] Hammond Cabinets
> To: "Richard Green" <k7yoo at yahoo.com>, <R-390 at mailman.qth.net>
> Message-ID: <21DFCBCD995E4C14966560EC7EFEF9FB at cyclops>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> I may be all wrong on this but I think the "real" R-390 cabinet has
> louvers
> on both sides and on top with screen covered holes in the bottom. All of
> this presumably for ventilation. At least mine does! If you use the
> Hammond
> unit, I would watch for internal temperature rise!!!
>
> Just a thought! Free and worth every bit!
>
> K3PID Ron H.
>
> This eMail has been scanned by McAfee?
> and found to be virus free!
>
>
> ----- Original Message -----
> From: "Richard Green" <k7yoo at yahoo.com>
> To: <R-390 at mailman.qth.net>
> Sent: Tuesday, November 23, 2010 11:15 AM
> Subject: [R-390] Hammond Cabinets
>
>
>> The Hammond P/N for cabinets to fit R-390, R 274, etc is :
>> RCBS1901017GY2
>> 19" x 10.50 panel, 17" deep
>> This comes with some blank panels, hardware and is a semi-gloss gray.
>> There are
>> other finishes available but this is the one that I would consider the
>> easiest
>> to either leave as is or repaint. I have purchased at least 6 of them
>> for
>> various receivers. They look good and are around $160. They can be
>> ordered
>> from
>> any Hammond distributor, including Fair Radio I'm sure.
>> Skip
>>
>>
>>
>>
>> ______________________________________________________________
>> 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: 3
> Date: Tue, 23 Nov 2010 12:55:43 -0700 (MST)
> From: Richard Loken <richardlo at admin.athabascau.ca>
> Subject: Re: [R-390] Hammond Cabinets
> To: "Ron.K3PID" <ron.k3pid at sbcglobal.net>
> Cc: Richard Green <k7yoo at yahoo.com>, R-390 at mailman.qth.net
> Message-ID:
> <Pine.PMDF.4.44L.1011231249100.564-100000 at local.admin.athabascau.ca>
> Content-Type: TEXT/PLAIN; charset=US-ASCII
>
> On Tue, 23 Nov 2010, Ron.K3PID wrote:
>
>> I may be all wrong on this but I think the "real" R-390 cabinet has
>> louvers
>> on both sides and on top with screen covered holes in the bottom. All of
>> this presumably for ventilation. At least mine does! If you use the
>> Hammond
>> unit, I would watch for internal temperature rise!!!
>
> The R-390 is confusing just like so much of life.
>
> I think that if I took an R-390 and ran it without a cabinet but with the
> top and bottom covers in place then I would have similar heating issues
> (or worse) than if I ran an R-390 in a Hammond cabinet without but with
> the top and bottom covers removed.
>
> As far as I recall, the manual told me to remove the covers if I put the
> unit in a rack. What does it say about installation in the official
> government issue cabinet?
>
> --
> Richard Loken VE6BSV, Unix System Administrator : "Anybody can be a
> father
> Athabasca University : but you have to earn
> Athabasca, Alberta Canada : the title of 'daddy'"
> ** richardlo at admin.athabascau.ca ** : - Lynn Johnston
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 23 Nov 2010 14:41:41 -0500
> From: Barry <n4buq at knology.net>
> Subject: Re: [R-390] Hammond Cabinets
> To: <R-390 at mailman.qth.net>
> Message-ID: <59591.1290541301 at knology.net>
> Content-Type: text/plain; charset="utf-8"
>
> Yes, the CY-979A is the cabinet of choice albeit a little hard to find
> these
> days. Not sure about the ventiliation in the Hammonds either.
>
> Barry - N4BUQ
>
>
> On Tue 23/11/10 1:29 PM , "Ron.K3PID" ron.k3pid at sbcglobal.net sent:
>> I may be all wrong on this but I think the "real" R-390 cabinet has
>> louvers
>> on both sides and on top with screen covered holes in the bottom. All of
>> this presumably for ventilation. At least mine does! If you use the
>> Hammond
>> unit, I would watch for internal temperature rise!!!
>>
>> Just a thought! Free and worth every bit!
>>
>> K3PID Ron H.
>>
>> This eMail has been scanned by McAfee?
>> and found to be virus free!
>>
>>
>> ----- Original Message -----
>> From: "Richard Green" k7yoo at yahoo.c
>> om>To: R-390 at m
>> ailman.qth.net>Sent: Tuesday, November 23, 2010 11:15 AM
>> Subject: [R-390] Hammond Cabinets
>>
>>
>> > The Hammond P/N for cabinets to fit R-390, R 274,
>> etc is :> RCBS1901017GY2
>> > 19" x 10.50 panel, 17" deep
>> > This comes with some blank panels, hardware and is
>> a semi-gloss gray. > There are
>> > other finishes available but this is the one that I
>> would consider the > easiest
>> > to either leave as is or repaint. I have purchased
>> at least 6 of them for> various receivers. They look good and are around
>> $160. They can be ordered > from
>> > any Hammond distributor, including Fair Radio I'm
>> sure.> Skip
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 23 Nov 2010 15:17:27 -0500
> From: "James Young" <YoungFamily at glwb.net>
> Subject: Re: [R-390] Hammond Cabinets
> To: <R-390 at mailman.qth.net>
> Message-ID: <BNEKLEFHNFCKPHNGGMHICEDPCIAA.YoungFamily at glwb.net>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> The proper cabinet for an R-390A is a CY-979/URR and it has louvers on the
> top and the sides as well as shock absorbing feet. I bought a brand new
> one
> from Frank Krize a number of years ago at Dayton. The radio covers need to
> be removed for the receiver to slide into the cabinet. I don't know, and
> have wondered myself, if the CY-979/URR is an appropriate cabinet also for
> an R-390 or R-391. Any ideas?
>
> 73 Jim Young W8MAQ
>
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net
> [mailto:r-390-bounces at mailman.qth.net]On Behalf Of Ron.K3PID
> Sent: Tuesday, November 23, 2010 2:29 PM
> To: Richard Green; R-390 at mailman.qth.net
> Subject: Re: [R-390] Hammond Cabinets
>
>
> I may be all wrong on this but I think the "real" R-390 cabinet has
> louvers
> on both sides and on top with screen covered holes in the bottom. All of
> this presumably for ventilation. At least mine does! If you use the
> Hammond
> unit, I would watch for internal temperature rise!!!
>
> Just a thought! Free and worth every bit!
>
> K3PID Ron H.
>
> This eMail has been scanned by McAfee?
> and found to be virus free!
>
>
> ----- Original Message -----
> From: "Richard Green" <k7yoo at yahoo.com>
> To: <R-390 at mailman.qth.net>
> Sent: Tuesday, November 23, 2010 11:15 AM
> Subject: [R-390] Hammond Cabinets
>
>
>> The Hammond P/N for cabinets to fit R-390, R 274, etc is :
>> RCBS1901017GY2
>> 19" x 10.50 panel, 17" deep
>> This comes with some blank panels, hardware and is a semi-gloss gray.
>> There are
>> other finishes available but this is the one that I would consider the
>> easiest
>> to either leave as is or repaint. I have purchased at least 6 of them
>> for
>> various receivers. They look good and are around $160. They can be
>> ordered
>> from
>> any Hammond distributor, including Fair Radio I'm sure.
>> Skip
>>
>>
>>
>>
>> ______________________________________________________________
>> 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
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1153 / Virus Database: 424/3274 - Release Date: 11/23/10
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1153 / Virus Database: 424/3274 - Release Date: 11/23/10
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1153 / Virus Database: 424/3274 - Release Date: 11/23/10
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 23 Nov 2010 16:55:06 -0500
> From: Jeff Adams <physicist at cox.net>
> Subject: Re: [R-390] Hammond Cabinets
> To: n4buq at knology.net,<R-390 at mailman.qth.net>
> Message-ID: <6.2.3.4.2.20101123165259.02d56cb8 at pop.east.cox.net>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Both of my CY-979As are vented as described. - Jeff
>
>> I may be all wrong on this but I think the "real" R-390 cabinet has
>> louvers
>> on both sides and on top with screen covered holes in the bottom. All of
>> this presumably for ventilation. At least mine does! If you use the
>> Hammond
>> unit, I would watch for internal temperature rise!!!
>
>
> Jeffrey L. Adams KG4RZM Physicist at cox.net
>
> http://www.jeffreyladams.com
>
> Mentor of the R390/R390A CD Archive
>
> Motorola R390A/URR 1956 14-PH-56 Serial 1409 w/ CY979
> Collins R390A/URR 1952 14214-PH-51 Serial 979 w/ CY979
> Collins R392/URR 1951 3075-PH-51 Serial 252 w/ T195 transmitter
> EAC R390A/URR 1960 23137-PC-60
> Hammarlund SP-600-JX-26 1953 Serial 13432
> Hammarlund SP-600-JX-17 Diversity Serial 12384
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 23 Nov 2010 16:18:52 -0600
> From: Randy and Sherry Guttery <comcents at bellsouth.net>
> Subject: Re: [R-390] Hammond Cabinets
> To: R-390 at mailman.qth.net
> Message-ID: <4CEC3DCC.5080402 at bellsouth.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 11/23/2010 2:17 PM, James Young wrote:
>> I don't know, and
>> have wondered myself, if the CY-979/URR is an appropriate cabinet also
>> for
>> an R-390 or R-391. Any ideas?
> I don't know about the R-390 - always rack mounted those we
> had - I had always assumed (there is that dangerous word!)
> that the cabinets would be the same as for the R-391s.
>
> Sherry's R-391 is in (best we can tell) a CY-979/URR...
> which is the single "Mobile table-top" cabinet called for
> in the manual. The manual also lists the CY 917/URR for
> "desk-top" use. Then goes on to also list the CY1119/FRR
> rack (i.e. AN/FRR-39) -- and the CY-1216/U - but I'd always
> thought of those used with the R-388s (i.e. AN/GRC-26). The
> book says to remove the top and bottom dust covers when in
> the CY-1119/FRR cabinet; but interestingly enough does not
> mention that with the other cabinets (each cabinet has a
> paragraph). Even so, I'd think it prudent to pull the
> covers - and in the case of the R-390/1 a small fan wouldn't
> be overkill.
>
> best!
>
> --
> randy guttery
>
> A Tender Tale - a page dedicated to those Ships and Crews
> so vital to the United States Silent Service:
> http://tendertale.com
>
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 23 Nov 2010 22:54:52 -0500
> From: Barry <n4buq at knology.net>
> Subject: Re: [R-390] R390a cabinet
> To: <r-390 at mailman.qth.net>
> Message-ID: <51623.1290570892 at knology.net>
> Content-Type: text/plain; charset="utf-8"
>
> Not sure if it will be a "deal" or not, but there's a CY-979A up on eBay:
> 170569522920
>
> Barry - N4BUQ
>
>
> On Mon 22/11/10 1:13 PM , Tom Langpap tomlangpap at yahoo.com sent:
>> Does anyone have any idea where one could get a deal on a metal?cabinet
>> to
>> fit the R390a?Regards,
>> Tom N0TJL
>
>
>
>
> ------------------------------
>
> _______________________________________________
> R-390 mailing list
> R-390 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390
>
>
> End of R-390 Digest, Vol 79, Issue 24
> *************************************
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> R-390 mailing list
> R-390 at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/r-390
>
>
> End of R-390 Digest, Vol 79, Issue 25
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