[Milsurplus] milsurplus test equipment manuals?
w4ron at carolina.rr.com
w4ron at carolina.rr.com
Thu Jun 17 11:33:06 EDT 2010
Does anyone know where I might find a manual for a
I-72-L signal generator?
It was made for the signal corp by Clough-Brengle,
the contract date on it is 1948.
Here's some photos of it if you're interested,
http://radioheaven.homestead.com/CB_I-72-L.html
--
73, RON w4ron
http://radioheaven.homestead.com/menu.html
http://cloughbrengle.homestead.com/
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> Today's Topics:
>
> 1. RAK-8 Receiver (David Hollander)
> 2. Re: RAK-8 Receiver (WA5CAB at cs.com)
> 3. Re: RAK-8 Receiver (Richard Brunner)
> 4. Re: RAK-8 Receiver (Richard Brunner)
> 5. TRC-24 antenna question (David Ross)
> 6. CY-2857/U UHF XTALs (appo2 at juno.com)
> 7. Re: Dayton Hamvention Net Pix (Michael Tauson)
> 8. PRC-135 (WW6N)
> 9. Re: Moving (Michael Tauson)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 14 Jun 2010 10:55:15 -0700
> From: David Hollander <n7rk at cox.net>
> Subject: [Milsurplus] RAK-8 Receiver
> To: "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>,
> Boatanchors <boatanchors at sco.theporch.com>, RCA Equipment
> <rca at mailman.qth.net>
> Message-ID: <4C166D03.5020904 at cox.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Was looking for an RAL-7 but an RAK-8 receiver followed me home
> yesterday as I could not pass it up. It has the power supply and the
> original manual. Turns out this was made by Magnavox, not RCA however it
> looks identical and the circuit looks the same. What is the difference
> between the RAK-7 and the RAK-8. I was always under the impression that
> all of these had been made by RCA.
>
> I started seriously listening to NDB's last winter so I'm thinking this
> may be a fun receiver to use over my FT-1000MP.
>
> Any comments or suggestions or things I should look out for?
>
> Tnx and 73,
>
> Dave N7RK
>
> --
> ***********************************************************
> Dave N7RK Boatanchors Home Page: http://members.cox.net/n7rk
> Phoenix, Arizona *DXCC Honor Roll* *WAZ#22 - 75 Meter SSB*
>
> ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX
>
> Boatanchor and Antique Radio Collector
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 14 Jun 2010 14:35:38 EDT
> From: WA5CAB at cs.com
> Subject: Re: [Milsurplus] RAK-8 Receiver
> To: milsurplus at mailman.qth.net, boatanchors at sco.theporch.com
> Message-ID: <11ba93.21e4668c.3947d07a at cs.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> Dave,
>
> According to SHIPS 242A, RCA (Navy Contractor Code CRV) was the prime
> contractor on RAK/RAL through RAK-7/RAL-7. Magnavox (CMX) was the prime
> contractor of RAK-8/RAL-8. However, Andrea Radio Corp. (CND) made some of the
> earlier models under subcontract to RCA.
>
> As to differences between the receivers of RAK-7 and RAK-8, if the receiver
> itself is CMX-46155 (and if Magnavox followed the rules) then it should be
> identical except for nameplate to CRV-46155 of RAK-6 and CND-46155 of RAK-7.
> I have the RAK-7/RAL-7 manual but unfortunately nothing on the -8.
>
> In a message dated 6/14/2010 12:55:27 PM Central Daylight Time,
> n7rk at cox.net writes:
> > Was looking for an RAL-7 but an RAK-8 receiver followed me home
> > yesterday as I could not pass it up. It has the power supply and the
> > original manual. Turns out this was made by Magnavox, not RCA however it
> > looks identical and the circuit looks the same. What is the difference
> > between the RAK-7 and the RAK-8. I was always under the impression that
> > all of these had been made by RCA.
> >
> > I started seriously listening to NDB's last winter so I'm thinking this
> > may be a fun receiver to use over my FT-1000MP.
> >
> > Any comments or suggestions or things I should look out for?
> >
> > Tnx and 73,
> >
> > Dave N7RK
> >
>
> Robert & Susan Downs - Houston
> wa5cab dot com (Web Store)
> MVPA 9480
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 14 Jun 2010 15:28:14 -0400
> From: Richard Brunner <brunneraa1p at comcast.net>
> Subject: Re: [Milsurplus] RAK-8 Receiver
> To: n7rk at cox.net
> Cc: Boatanchors <boatanchors at sco.theporch.com>,
> "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>, RCA
> Equipment <rca at mailman.qth.net>
> Message-ID: <1276543694.7443.19.camel at owner-desktop>
> Content-Type: text/plain
>
> The only difference in the suffixes is contract number. This was a
> common Navy practice. The RAK and RAL receivers are pretty sturdy, and
> the only problem I expect to find is carbon resistors aged way high.
> The oil and paper capacitors are "slightly" leaky compared to new
> capacitors, and replacing those in the tuned audio filter will
> marginally improve selectivity.
>
> In the RAK receiver if you run the heaters on ac the inductors in the
> audio filters will pick up a wee bit of hum from the ac magnetic field.
> The navy mentions this as a good indication that the receiver is
> working. I prefer dc on heaters. I didn't notice this effect in the
> RAL.
>
> I use the RAK and RAL frequently. They can hear everything audible in
> modern receivers, and seem quieter than many superhetrodyne receivers.
>
> Richard, AA1P
>
>
> On Mon, 2010-06-14 at 10:55 -0700, David Hollander wrote:
> > Was looking for an RAL-7 but an RAK-8 receiver followed me home
> > yesterday as I could not pass it up. It has the power supply and the
> > original manual. Turns out this was made by Magnavox, not RCA however it
> > looks identical and the circuit looks the same. What is the difference
> > between the RAK-7 and the RAK-8. I was always under the impression that
> > all of these had been made by RCA.
> >
> > I started seriously listening to NDB's last winter so I'm thinking this
> > may be a fun receiver to use over my FT-1000MP.
> >
> > Any comments or suggestions or things I should look out for?
> >
> > Tnx and 73,
> >
> > Dave N7RK
> >
>
>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 14 Jun 2010 17:11:40 -0400
> From: Richard Brunner <brunneraa1p at comcast.net>
> Subject: Re: [Milsurplus] RAK-8 Receiver
> To: n7rk at cox.net
> Cc: milsurplus at mailman.qth.net
> Message-ID: <1276549900.7785.13.camel at owner-desktop>
> Content-Type: text/plain
>
> Additional commentary if you use the navy power supply:
> Don't use the input ballast tube. It never worked as advertised. It
> will not protect against abrupt input voltage changes, and takes minutes
> to stabilize. Change the input voltage tap to 125 volts.
> If B+ is over 180 volts the set will be too hot and difficult to
> operate. I had to change to choke input filter, and added output
> capacitance to stop motorboating in the receiver.
> The voltage dropping resistors for the 884 voltage regulator are carbon
> resistors in a no ventilation area, and probably failed. They were
> selected to pass 40 ma, which is absurd to regulate 1/2 ma. Increase to
> pass about 5 ma and all will be well. If your 884 is not regulating,
> use a VR-90 plus a homemade socket adapter. The navy power supply has
> line filters which are advantageous in keeping noise out of the RAK on
> lf and mf, but not needed for the RAL.
>
> Richard, AA1P
>
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 14 Jun 2010 14:15:12 -0700
> From: David Ross <ross at hypertools.com>
> Subject: [Milsurplus] TRC-24 antenna question
> To: milsurplus <milsurplus at mailman.qth.net>
> Message-ID: <4C169BE0.5060109 at hypertools.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Has anyone used a TRC-24 antenna? It is a pair of beams on a common
> boom, and can be used on 6M.
>
> I am wondering how the boom is attached to a mast.
>
> And what mast was used with the TRC-24 antenna?
>
> Also, there seems to be a splitter/combiner used with the TRC-24 beams.
> Does anyone have one of these TRC-24
> combiner/splitter units? Probably has Type "C" connectors.
>
> thanks
> Dave Ross N7EPI
>
>
> ------------------------------
>
> Message: 6
> Date: Mon, 14 Jun 2010 15:29:56 -0700
> From: appo2 at juno.com
> Subject: [Milsurplus] CY-2857/U UHF XTALs
> To: Milsurplus at mailman.qth.net
> Message-ID: <20100614.152957.2532.0.appo2 at juno.com>
> Content-Type: text/plain; charset=shift_jis
>
> I have two boxes of these,took them many times to ham swap meet
> but nobody ever told me for what radio?Something to do with old Navy
> radio.Contents are as follows;
>
> UNKNOWN XTALS FOR UHF RADIO
> 1;406.5---424.5MHZ 100KC STEP
> 2ND ROW,;425.5-443.5,,,3RD;444.5-462.5,,,4TH;463.5-481.5 MHZ
> 5TH;;;REFERENCE XTAL 25.4MHZ AND 482.5-503.5MHZ
> 6TH;;;504.5MHZ --526.5MHZ
> 7TH;;;527.5---549.5MHZ
>
> 2ND UNIT MISSING 25.4MHZ XTAL AND 490.5 AND 491.5MHZ,,REF XTALSLOT HAS
> 503.5MHZ
>
> 406.5MHZ AT 36.25MHZ
> 549.5MHZ AT 60.0833MHZ,,WHICH MAKE IF TO BE AROUND 189MHZ.
>
> THUS,,,FUNDAMENTAL MUST BE FROM 12MHZ-17MHZ,,AND AROUND 500MHZ
> FUNDAMENTAL GOES DOWN TO 10MHZ AREA,,NOW WORKING AT 5TH OVERTONE.
> 504.5 MEASURED 10.516,,AND 540.5 IS 11.717MHZ.
> 500.5 IS 17.297 AND 501.5 IS 10.418MHZ
>
> CABINET IS MARKED CASE,CRYSTAL-OVEN,,,CY-2857/U
>
> 5955 00 736 4654 NSN NUMBER PER 97 FEDLOG.
>
> K7FT
>
> ____________________________________________________________
> Get Free Email with Video Mail & Video Chat!
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>
> ------------------------------
>
> Message: 7
> Date: Mon, 14 Jun 2010 16:06:28 -1000
> From: Michael Tauson <wh7hg.hi at gmail.com>
> Subject: Re: [Milsurplus] Dayton Hamvention Net Pix
> To: Mark <pal350 at yahoo.com>
> Cc: milsurplus at mailman.qth.net
> Message-ID:
> <AANLkTincCanZonytdbY6dlS0R8AFlFrLEK9QZthBwLbr at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> On Wed, May 19, 2010 at 8:34 AM, Mark <pal350 at yahoo.com> wrote:
> > Here are some pix from the three nets at the Dayton
>
> Mark, I shared these with Noelle and ... well, her comments were
> amusing. First off, she looked at the group pics and said something
> like, "Daddy, please tell me there aren't more of you!" Then I
> mentioned that some of the equipment predated me to which she
> responded about nothing being older than me. Then she added that it
> was pretty cool how some of the guys put radios in their canes
> (refering to the BC-746s.) And finally came the Marty Reynolds
> Memorial CW Net (I explained who Marty was and she liked him
> immediately.) where she said "Oh, look, Pops. There's a lady who's
> just your type." I asked what she meant and she replied, "Breathing."
>
> The comments went on from there but those were the highlights. My
> little girl may not be in great shape physically but she's just as
> feisty and lovingly disrespectful as ever.
>
> Just thought you'd like to know.
>
> Best regards,
>
> Michael, WH7HG
> --
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki N?!
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 15 Jun 2010 22:03:51 +0900 (KST)
> From: WW6N <yonglee at yonsei.ac.kr>
> Subject: [Milsurplus] PRC-135
> To: milsurplus at mailman.qth.net
> Message-ID: <26741181.1276607031191.JavaMail.root at twebmail>
> Content-Type: text/plain; charset=EUC-KR
>
> Hello;
> Does someone hear about PRC-135 radio?
> Is there any PRC-135 for sale?
> de WW6N
>
> ------------------------------
>
> Message: 9
> Date: Tue, 15 Jun 2010 05:30:33 -1000
> From: Michael Tauson <wh7hg.hi at gmail.com>
> Subject: Re: [Milsurplus] Moving
> To: arc5 at mailman.qth.net, boatanchors at lists.tempe.gov,
> milsurplus at mailman.qth.net, tetrode at googlegroups.com
> Message-ID:
> <AANLkTil8xvblBCfq8bSXPvzaOH3_ngiUREQJVyMy7fsz at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Okay, an update is in order.
>
> First off, I'd like to thank everyone for the supportive emails.
> They're greatly appreciated and I'll reply to them as I can.
>
> I have a new address in Kapolei, a carry over from when I lived at
> Barber's Point before, and am using this email address, at least for
> now, in lieu of the hawaii.rr.com ones. I'll lose Roadrunner when I
> move and I don't know what ISP is being used for the provided wireless
> in the rooms. It may be Hawaiian Tel which has an extensive wireless
> network instead of DSL.
>
> The Jeep blew the fuel feed line from the tank and spewed gas all over
> the H-1 Interstate (Yeah, I know. Why does an island have an
> interstate highway?) and I decided I didn't want to fix it again. So,
> I sold it to a guy who does mechanic work for me for how much I
> figured I would get as a trade in for the truck I want, a 1985 GMC
> 8x10 flatbed. It's not pretty and I don't doubt it needs more work
> than is obvious but it'll get me through the move and provide a
> platform for the infamous mobile comm shelter. I don't mind getting
> my hands dirty doing what I can and I know Kapu can handle most
> everything else so it's all good.
>
> If I remember to take my camera, I'll take pics of the room I'll have
> (which I think will be right across from my old one) and anything else
> that looks exciting. Assuming I manage this feat of mental prowess
> (remembering the camera), I'll post the pics somewhere so you all can
> be envious and stuff. :-D
>
> Okay, back to chewing through the leather restraints ...
>
> BEst regards,
>
> Michael, WH7HG
> --
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki N?!
>
>
> ------------------------------
>
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