[ARC5] A.R.C. Type 12 receivers

[MARK DORNEY]

The ARC Type 12 is a 1950s - 1960s aircraft radio, used in civilian and some military aircraft, most notably early helicopters. Lest anybody think this radio would fit the bill to install in a period correct WW2 vehicle. 

Mark D. 
WW2RDO

“In matters of style, float with the current. In matters of Principle, stand like a rock. “.   -   Thomas Jefferson 

Sent from my iPhone

> On Aug 14, 2021, at 12:01 PM, Tim <timsamm at gmail.com> wrote:
> 
> 
> Hi Guys- Much like Jeep, I put together a T-13 / R-19 setup from swap meet finds and a pair of shock mounts and an RX panel given to me by a friend (from a ham-swap discard pile). I had a long-ish spline cable from Fair Radio (40 years ago purchase).  With a DIY TX control panel and initially a DIY "solid state dynamotor" I got it together and working.  The Type 12 works great, sounds better and I think under appreciated...Even if just to monitor the local aircraft comms.  We occasionally run an AM net on 144.450 mc with another T-12 and a couple of USMC MAW's.  
> Fun!  https://www.n6cc.com/type-12-vhf-am-aircraft-system/
> 
> Tim
> N6CC
> 
>> On Sat, Aug 14, 2021 at 5:16 AM Doran Platt <jeepp at comcast.net> wrote:
>> Hue,
>> I made a sort of copy of the ARC Type 12 air/ground package. Using an R-19 and T-13B, I  mounted the control box on an extended front panel and connected the two tuning splines via a 1/4" Dia. copper tubing shaft extensions.  The control box has to be perfectly aligned axially with the receiver but it worked.  The front panel had a speaker, channel switch, and audio Jack's.  The bugaboo is trying to form both ends of the tubing to conform with the splines without deforming the tubing.  In the end, I had to make two spline adaptors and a shaft coupling in between as I could not get both ends on one piece done without ruining the other.   Forming the end of each tube was done with a cannibalized spline end chucked in a vice and tapping it over the spline.  Cutting oil helped.  I read the old CQ mags of the 40's and 50's and marvel of how plentiful these tuning shafts were... oh well.
>> Jeep K3HVG
>>> On 08/14/2021 3:31 AM Hubert Miller < kargo_cult at msn.com> wrote:
>>>  
>>>  
>>> I found an A.R.C. C-22A control box in my "stuff". This causes me to wonder, people ( the very few ) who are powering up
>>> A.R.C. Type 12 receivers, what are they doing for a flex tuning cable?
>>> -Hue Miller
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