[R-390] R-390 Digest, Vol 123, Issue 18
Ron Bussiere via R-390
r-390 at mailman.qth.net
Tue Jul 29 18:08:12 EDT 2014
Gee, no idea why my recent postings didn't make it through, concerning oil and powders........
I have been an enthusiastic user of both WS2 and HBN for years. I have added these powders to every available oil/grease I have come across. I consider "enhanced lubrication" as a sub hobby to target shooting and gunsmithing......
A previous post mentions Stoddard Solvent (SS). As one of my 'missing' posts, I suggest going to "Bob is the Oil Guy" website, for all the lubrication facts you could ever want. The moderator is a Lubrication Engineer and develops additive packages for the major oil companies.
Having said this, you will find the major ingredient is good 'ole Marvel Mystery Oil (MMO) is indeed SS.
I have moved from WS2 to HBN just because of the 'mess factor'. WS2 is indeed the best possible choice. In it's preferred particle size, (which is $), it will get into the pores of your skin, which explains why it is so 'dirty'......
I currently 'impact plate' all my centerfire rifle bullets with HBN as well as the bores of my precision rifles. Info on this can be found at "6mmbr".....
ron
N4UE
-----Original Message-----
From: r-390-request <r-390-request at mailman.qth.net>
To: r-390 <r-390 at mailman.qth.net>
Sent: Tue, Jul 29, 2014 5:33 pm
Subject: R-390 Digest, Vol 123, Issue 18
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Today's Topics:
1. Buying TDS Bulk (Perry Sandeen via R-390)
2. Roofing Filters (Perry Sandeen via R-390)
3. Re: Synthetic Oil (Gary Geissinger via R-390)
4. Re: Synthetic Oil (Bob Camp)
----------------------------------------------------------------------
Message: 1
Date: Sun, 27 Jul 2014 17:05:56 -0700
From: Perry Sandeen via R-390 <r-390 at mailman.qth.net>
To: "r-390 at mailman.qth.net" <r-390 at mailman.qth.net>
Subject: [R-390] Buying TDS Bulk
Message-ID:
<1406505956.91784.YahooMailNeo at web161504.mail.bf1.yahoo.com>
Content-Type: text/plain; charset=utf-8
List,
?
When I bought a bulk purchase of TDS from the manufacturer
in Canada,? I thought I?d be wise and buy
5 pounds for the 5+ discount rate.
?
BUT I found out that there was a $60 something* brokerage
fee* because of the 5 lbs.
?
So if you are thinking about making a killing???.
?
Basically I broke a little better than even when I
sold the TDS. (Had to buy a $35 gram scale and a 100 G cal. Weight also.
?
I also think I got the micron (better) stuff.
?
Regards,
?
Perrier
------------------------------
Message: 2
Date: Sun, 27 Jul 2014 17:23:31 -0700
From: Perry Sandeen via R-390 <r-390 at mailman.qth.net>
To: "r-390 at mailman.qth.net" <r-390 at mailman.qth.net>, Tisha Hayes
<tisha.hayes at gmail.com>
Subject: [R-390] Roofing Filters
Message-ID:
<1406507011.1842.YahooMailNeo at web161505.mail.bf1.yahoo.com>
Content-Type: text/plain; charset=utf-8
GM List,
?
I have thought for a long time of adding roofing
filters to my R390A*s as done by Dallas Lankford in the Y2KR3 manual.
?
Unless one buys five or more the price is about
+$200 ea IIRC.
?
I?m considering doing a group buy if enough people
are interested AND are willing to put the money up front.? I would need to
charge about $15 more to the bulk
filter price so I?d break even.
This is serious money and effort as one needs to
wind torroid transformers for input and output impedance matching.
?
Look at the article in the Y2KR3 manual and think if
the remuneration will exceed the aggravation.
?
Please reply off list.? Expected time for the purchase would be mid
to late September at the earliest.
?
Regards,
?
Perrier?
------------------------------
Message: 3
Date: Tue, 29 Jul 2014 08:46:18 -0700
From: Gary Geissinger via R-390 <r-390 at mailman.qth.net>
To: R390A <r-390 at mailman.qth.net>
Subject: Re: [R-390] Synthetic Oil
Message-ID:
<1406648778.44952.YahooMailBasic at web125605.mail.ne1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Guys,
I am in the middle of restoring a Collins 18S-4A aircraft transceiver. I had to
perform research in order to determine the current solvent and aircraft grease
that is compatible with the original early 1950s materials. That was because
the dynamotor bearings needed to be cleaned and lubricated.
I settled on Stoddard Solvent to remove the old grease. It turns out that
Grainger makes a solvent that seemed similar. I spoke with a chemist with
Grainger's vendor concerning the solvent. The Grainger solvent is essential the
same as Stoddard Solvent. By the way, Stoddard Solvent is about 95% kerosene.
No wonder many A&P mechanics simply use kerosene to clean out aircraft bearing.
After going from obsolete military specification to obsolete military
specification and finally to a current military specification I found that the
current synthetic grease to use is AeroShell 33 which is available in small
tubes from Aircraft Spruce. This grease is just about the perfect consistency
to replace the grease on shaft bearings and the like. It also has another very
positive attribute. By military specification this lubricant does not have a
"Rancid Odor" like most wheel bearing grease does.
Unfortunately my 30S-1 and T-368 were lubricated by the previous owners with
"smelly grease"; that causes a "wife approval problem" whenever I run them for
an extended period. When it is time to clean out their bearings and lubricate
them I will use the AeroShell 33 there as well.
While this isn't the light synthetic machine oil needed in some applications in
an R-390, it is applicable in other places.
Gary WA0SPM, member US Army MARS
--------------------------------------------
On Fri, 7/25/14, Renee K6FSB <k6fsb.1 at gmail.com> wrote:
Subject: Re: [R-390] Synthetic Oil
To: "Tisha Hayes" <tisha.hayes at gmail.com>
Cc: "R390A" <r-390 at mailman.qth.net>
Date: Friday, July 25, 2014, 5:20 PM
I found that M1 ( or a light syn oil
if M1 too heavy) with magic powder
does superb on my audiophool turntable, firearms, clocks,
gee the list
goes on......
Ren?e
the other "crazy radio lady"
Tisha Hayes wrote:
> I still use Mobil 1 synthetic cut with the magic
powder. One quart will
> last you forever.
>
> Some of the things I found that were interesting was
the oil that is used
> by roller-blades by the skater crowd. It seems like
more hype than anything
> else. It is just a teflon based lubricant.
>
> Another I found was on an audiophile (record
turntables) site where they
> get really obsessive about the spindle bearings and
count how many
> revolutions the turntable takes after power is cut off
(seems somewhat
> scientific). That oil seems a bit lightweight and
appears to be better
> suited for the little turbine motors in air tools.
>
> A pen oiler would be nice but a toothpick seems easier
to control
> quantities so the radio does not get an oil bath.
>???
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Message: 4
Date: Tue, 29 Jul 2014 17:29:46 -0400
From: Bob Camp <kb8tq at n1k.org>
To: Gary Geissinger <geissingergary at yahoo.com>
Cc: R-390-List list <r-390 at mailman.qth.net>
Subject: Re: [R-390] Synthetic Oil
Message-ID: <58E0EFD9-406C-4C49-9442-1F2BA353B5F5 at n1k.org>
Content-Type: text/plain; charset=windows-1252
Hi
I think you will find that our gear got exposed to a much wider range of
solvents in the 1950?s than it does today. Those were the days of the ?dunk it
in the tank? approach to cleaning gear. Much of what got used is now outlawed.
That?s not to say that it *liked* all those solvents. It probably tolerated them
pretty well.
I would consider isopropanol and ethanol to be pretty good candidates for
cleaning ?stuff?. As long as both are 99.something percent pure, there?s not
much to argue with. Both are flammable, so they should be used with care. Yes
there are some few plastics that you can have issues with. I don?t believe any
of them got used in mil gear after WWII.
Bob
On Jul 29, 2014, at 11:46 AM, Gary Geissinger via R-390 <r-390 at mailman.qth.net>
wrote:
> Guys,
>
> I am in the middle of restoring a Collins 18S-4A aircraft transceiver. I had
to perform research in order to determine the current solvent and aircraft
grease that is compatible with the original early 1950s materials. That was
because the dynamotor bearings needed to be cleaned and lubricated.
>
> I settled on Stoddard Solvent to remove the old grease. It turns out that
Grainger makes a solvent that seemed similar. I spoke with a chemist with
Grainger's vendor concerning the solvent. The Grainger solvent is essential the
same as Stoddard Solvent. By the way, Stoddard Solvent is about 95% kerosene.
No wonder many A&P mechanics simply use kerosene to clean out aircraft bearing.
>
> After going from obsolete military specification to obsolete military
specification and finally to a current military specification I found that the
current synthetic grease to use is AeroShell 33 which is available in small
tubes from Aircraft Spruce. This grease is just about the perfect consistency
to replace the grease on shaft bearings and the like. It also has another very
positive attribute. By military specification this lubricant does not have a
"Rancid Odor" like most wheel bearing grease does.
>
> Unfortunately my 30S-1 and T-368 were lubricated by the previous owners with
"smelly grease"; that causes a "wife approval problem" whenever I run them for
an extended period. When it is time to clean out their bearings and lubricate
them I will use the AeroShell 33 there as well.
>
> While this isn't the light synthetic machine oil needed in some applications
in an R-390, it is applicable in other places.
>
> Gary WA0SPM, member US Army MARS
>
> --------------------------------------------
> On Fri, 7/25/14, Renee K6FSB <k6fsb.1 at gmail.com> wrote:
>
> Subject: Re: [R-390] Synthetic Oil
> To: "Tisha Hayes" <tisha.hayes at gmail.com>
> Cc: "R390A" <r-390 at mailman.qth.net>
> Date: Friday, July 25, 2014, 5:20 PM
>
> I found that M1 ( or a light syn oil
> if M1 too heavy) with magic powder
> does superb on my audiophool turntable, firearms, clocks,
> gee the list
> goes on......
> Ren?e
> the other "crazy radio lady"
>
> Tisha Hayes wrote:
>> I still use Mobil 1 synthetic cut with the magic
> powder. One quart will
>> last you forever.
>>
>> Some of the things I found that were interesting was
> the oil that is used
>> by roller-blades by the skater crowd. It seems like
> more hype than anything
>> else. It is just a teflon based lubricant.
>>
>> Another I found was on an audiophile (record
> turntables) site where they
>> get really obsessive about the spindle bearings and
> count how many
>> revolutions the turntable takes after power is cut off
> (seems somewhat
>> scientific). That oil seems a bit lightweight and
> appears to be better
>> suited for the little turbine motors in air tools.
>>
>> A pen oiler would be nice but a toothpick seems easier
> to control
>> quantities so the radio does not get an oil bath.
>>
> ______________________________________________________________
> 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
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