[MRCA] Mystery Tool?

J. Forster jfor at quikus.com
Thu Mar 28 14:33:53 EDT 2013


At a guess, it's so the crank can be disengaged w/o removing it from the
set...  keeping it captive so to speak.

YMMV,

-John

===============



> One thing puzzles me, and that is the screw.  The depth of threads in
> the end of the line shaft is only 1/4", according to both K4CHE and
> WF2U.  3/8" would bottom out before you could get the tool clamped down
> enough to do much good...it would be flopping around on the end of the
> line shaft as you used it, causing all sorts of grief.  That's one
> reason I made my own.  And is that a #4-40 in your photo?  Looks larger
> somehow, but it may be the magnification.
>
>   - Mike
>
> On 3/28/2013 1:40 PM, D. Platt wrote:
>> On 3/28/2013 8:35 AM, Mike Hanz wrote:
>>> See http://aafradio.org/garajmahal/ART-13_lineshaft_crank.html - a
>>> web page I am working on at the moment for the answer to that, Jeep.
>>> The drawings are not quite finished, but you'll get the idea. Since
>>> the AN/ARC-1 has three autotune heads, perhaps there is a similar
>>> usage on it, though the crank appears identical.
>>>
>>> 73,
>>> Mike  KC4TOS
>>>
>> Mike,
>>
>> Bingo......  That is it, simply no doubt. Truth told, I never even
>> considered the thought.  My minds eye was something a lot larger for
>> the ART-13 crank.  Well, looks like I have the tool.
>>
>> Jeep - K3HVG
>>
>>
>
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