[ARC5] Command Set Shaft Collar Nut

[Bill Cromwell]

Hi Les,

On this continent (and probably all continents) the generation that 
designed those radios were much more familiar with bicycles than the 
present generation(s). And in the days when those designers were growing 
up and into their adult lives had a lot more hands-on experience with 
everything in their lives. Most of the people using bicycles today pay 
far too much for them and then can barely manage the simplest of 
'maintenance' - maybe washing and waxing and a drop of oil here and 
there. Bicycle shops that I know about are always busy keeping this 
generation's bicycle status symbols working. I'll stop in there and ask 
about 1/2-27 parts.

73,

Bill  KU8H

On 04/11/2017 07:46 PM, Leslie Smith wrote:
>   Threads on "command" radio receivers.
>   I refer to the thread used between the tuning system and the receiver.
>   I measured the thread using a thread gauge.
>   I found the thread was 27 turns to the inch (and NOT 28 tpi)
>   Using Newnes Workshop Handbook I read that (1) the thread was 1/2 
> inch cycle thread
>   (2) this thread was considered to resist "unwinding" due to vibration.
>
>   That's all I know.
>   Except I thought it was very clever to use a thread that resisted 
> working free in equipment subject to vibration.
>   How did those radio guys know about bicycle threads?   Hmmm?
>
>    73 de Les Smith
>    vk2bcu at operamail.com
>
>
>
> On Wed, Apr 12, 2017, at 08:17, Phillip Carpenter wrote:
>> Mike,
>>
>> I was reading that website posting but it was unclear if the ARC-5 
>> receivers had the same thread. It looked like he was talking about 
>> ARB receivers.
>>
>> Phillip W4RTX
>>
>> Sent from my iPhone
>>
>> On Apr 11, 2017, at 5:39 PM, Michael Hanz <aaf-radio-1 at aafradio.org 
>> <mailto:aaf-radio-1 at aafradio.org>> wrote:
>>> See http://aafradio.org/garajmahal/flex_drive_cables.html for all 
>>> that stuff.  The tuning shaft collar is a straight 1/2"-27TPI thread 
>>> (_not_ a tapered pipe thread).
>>>
>>> 73,
>>> Mike
>>>
>>>
>>> On 4/11/2017 5:26 PM, Phillip Carpenter wrote:
>>>> Does anyone know what thread size and type of through-hole nut fits the shaft collar on the Command Set receivers?
>>>>
>>>> I know it's smaller than a 3/8" NPT compression nut.
>>>>
>>>> Thank you in advance to all who reply!
>>>>
>>>> Respectfully,
>>>>
>>>> Phillip W4RTX
>>>>
>>>> Sent from my iPhone
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>
>
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-- 
bark less - wag more