[MRCA] ARC Type 12 "Packaging"

Fri Mar 29 02:47:35 EDT 2013

Hi Mike - no offense taken!  LOL  Always learning....
I have used both types of mics with the T-12 and they sound fine.  The
"catalog" pages I have seen from ARC show an RS-38 type but I was not aware
of the differences with the number of holes....As a post WWII radio I
understand they were used by the military in early helo's and liaison A/C
mostly - but wouldn't those have been with boom or maybe throat mic's
instead of a hand-held carbon type?  Dunno.  I can't find any references to
*specific* types of military A/C that had T-12's installed however,  I'm
guessing that their size and light weights were major attributes in smaller
A/C...

ARC T-12 Trivia:  The comm equipment in the first high altitude balloon
free-fall parachuting experiments (Col Joe Kittinger - Project Excelsior)
used an ARC Type -12 transmitter for telemetry comms to the ground
station...(maybe voice comms too, I don't know that for sure)

I used RS-38's with an ARC-94 and also ARC-120 HF sets in the 1970-80's in
the Navy and the mics seemed like antiques but they worked....

Yep - the altimeter is the real deal.  It works up to 100,000 feet so it
probably came from some kind of Fast Mover.  I took it to work once and put
it in a vacuum chamber with a calibrated pressure gauge and pumped down to
100,000 feet equivalent altitude and it was right on the money.
Impressive.  Here's a shot at a somewhat lower campsite elevation....(Pay
no attention to the CB Radio behind the curtain....)
73, Tim
N6CC

On Thu, Mar 28, 2013 at 11:21 PM, Michael Tauson <wh7hg.hi at gmail.com> wrote:

>  Hi, Tim,****
>
> ** **
>
> While it was intended in jest, the postwar ARC equipment in civilian
> service was most commonly used with a postwar civilian version of the
> RS-38.  ARC sold them as did a number of other companies for use in general
> aviation aircraft and, in thinking back, I don’t recall many airplanes I
> flew that didn’t have one.  With that, I can’t see any reason an airplane
> owner might not use a T-17 aside from not having CAA (FAA’s predecessor)
> certification.  OTOH, I carried two original RS-38s and a pair of HS-33s in
> my flight bag, none of which was certified.  Why two mics?  Because I had
> them and didn’t have any other use for them. :-)****
>
> ** **
>
> I’m not sure what the military used but since they were buying the Type 12
> equipment as COTS (commercial off the shelf) I wouldn’t doubt ARC managed
> to sell them a few mics as well.****
>
> ** **
>
> Ummm … the altimeter.  Is it in truth an altimeter or is it one of the
> gazillion instrument conversions to a clock?****
>
> ** **
>
> Best regards,****
>
>  ****
>
> Michael, K3MXO, A&P 1803851 Ph: 1-866-733-0218****
>
> The ‘Torque ‘er down 'till it strips then back ‘er off a quarter turn’
> type of expert****
>
> *http://www.nationalmssociety.org/chapters/NTH/index.aspx*
>
> *http://wh7hg.blogspot.com/*
>
> *http://kludges-other-blog.blogspot.com*
>
> Hiki Nô! ****
>   ------------------------------
>
> *From:* Tim [mailto:timsamm at gmail.com]
> *Sent:* Thursday, 28 March, 2013 16:49
> *To:* Michael Tauson
> *Cc:* mrca at mailman.qth.net
> *Subject:* Re: [MRCA] ARC Type 12 "Packaging"****
>
> ** **
>
> Doh! Thanks Mike, I must have lost my head (and my RS-38 mic)......
> I hang out here to learn this kind of stuff, so thanks for the input!
>
> (and may your tent be always upwind of the camels)  ;o)
>
> 73, Tim
> N6CC****
>
> On Thu, Mar 28, 2013 at 7:03 PM, Michael Tauson <wh7hg.hi at gmail.com>
> wrote:****
>
> For shame!  For shame!  A T-17 mic attached to that rig?  That should be a
> postwar civilian (i.e., too many holes) RS-38.  I thought everyone knew
> that!  ;-)****
>
>  ****
>
> Best regards,****
>
>  ****
>
> Michael, K3MXO, A&P 1803851 Ph: 1-866-733-0218****
>
> The ‘Torque ‘er down 'till it strips then back ‘er off a quarter turn’
> type of expert****
>
> *http://www.nationalmssociety.org/chapters/NTH/index.aspx*****
>
> *http://wh7hg.blogspot.com/*****
>
> *http://kludges-other-blog.blogspot.com*****
>
> Hiki Nô! ****
>   ------------------------------
>
> *From:* mrca-bounces at mailman.qth.net [mailto:mrca-bounces at mailman.qth.net]
> *On Behalf Of *Tim
> *Sent:* Thursday, 28 March, 2013 10:15
> *To:* B. Smith
> *Cc:* mrca at mailman.qth.net
> *Subject:* [MRCA] ARC Type 12 "Packaging"****
>
>  ****
>
> Nice Mobile!  I apparently discovered ARC Type-12 gear late in my Ham
> career but I'm glad I did.  They are fun to play with and they sound great
> even if it's only listening to aircraft or the occasional pre-arranged 2
> meter Ham AM contacts. (We play with Type 12's and MAW transceivers out
> here)
> Here's my equivalent - easy to package for mobile, portable
> mountain-topping, in the Shack or for display purposes...
> 73,
> Tim N6CC****
>
>  ****
>
>  ****
>
>
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