[ARC5] Tuning Cable Question

[J. Forster]

I'd put it a bit differently.

Since a working Bendix standard EXISTED, there was no pressing need to
invent something. Furthermore, any 'improvement' would not be very much
better.

After all, there was a war on.

FWIW

-John

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




>
> Maybe just that Bendix set the standard at the time as they were solidly
> in the business at that time.
>  Just surmising...
> Jay
>
>
> -----Original Message-----
> From: Mike Hanz <aaf-radio-1 at aafradio.org>
> To: Robert Eleazer <releazer at earthlink.net>; arc5 <arc5 at mailman.qth.net>
> Sent: Fri, May 30, 2014 3:17 pm
> Subject: Re: [ARC5] Tuning Cable Question
>
>
> On 5/30/2014 1:04 PM, Robert Eleazer wrote:
>> As we all know the tuning knobs for the earlier TRF radios like the RU
>> and
> SCR-283 are larger than the ones used for the SCR-274-N and ARC-5 types.
> As I
> found to my dismay when I bought a tuning knob in a store in San Diego
> many
> years ago, only to find it would not fit the radios I had.
>>
>> Is this because the TRF sets had more mechanical stuff to turn than the
> superhets and thus needed cables capable of handling the extra load?
>
> If it were a function of load, wouldn't the inner phosphor bronze flex
> drive cable be larger in diameter than the ones in the command set
> drives?  (It's not...they are both ~.148"OD)  What is somewhat
> inexplicable is why the earlier cables had a larger diameter sheath than
> those for the command sets, and thus needed a larger connecting nut,
> which forced the spinner knob to be larger, and the knee bone is
> connected to the thigh bone, and....
>
>> I guess that same kind of cable is used on the ARN-6 as well.
>
> As well as all the Bendix control boxes.
>
>   - Mike  KC4TOS
>
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