[ARC5] Spinner knobs - tuning gear

[J. Forster]

There are plastic knobs from old consumer radios which do work.

It would obviously be possible to replicate the spinners, but would be
expensive:

 The handle is simple lathe work.

 Ditto the circular disk.

 The spline shaft is not so easy. The ID would probably have to be EDM'd
unless it were made in two pieces. You could probably broach the spline
into the ID of a short length of thick walled tube, then brase that to a
piece of shaft.

 The knurled nut is more lathe work.

FWIW,

-John

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



> Hello John,
> Thanks for your reply.
> I omitted to say "FABRICATED spinner knob", and obviously not-original,
> but in general style and quality of ARC-5 gear.
>
> Regards,
>
>   Leslie Smith
>   vk2bcu at operamail.com
>
>
> On Tue, Jan 1, 2013, at 4:42, J. Forster wrote:
>> They are in high demand on eBay and generally go well over $30 US...
>> both
>> the small size (ARC-5) and the large size (MN-26).
>>
>> -John
>>
>> ============
>>
>>
>>
>> > Hello everybody,
>> > I'd like to know how many people have an interest in spinner knobs and
>> > splines & co?
>> > I refer to the general arrangement that replaces the always missing
>> > tuning cable on the front of every set - assuming you cant get a
>> tuning
>> > (or "spinner") knob.
>> >
>> >   Leslie Smith
>> >   vk2bcu at operamail.com
>> >
>> >
>> > On Tue, Jan 1, 2013, at 3:36, Ronnie Hull wrote:
>> >> Gentleman, I have had incredible luck so far building up my scr274n
>> >> station, lots of thanks to everyone that helped but especially to
>> Dave
>> >> AB5S, MR ARC-5, for all the work he did on my piles of junk.
>> >>
>> >> I only need TWO more spinner knobs to go on my rx's to make the setup
>> >> complete. Anyone have a pair of these they will part with at a
>> >> reasonable
>> >> price?
>> >>
>> >> I hope you all have a safe and blessed New Years!
>> >>
>> >> 73's
>> >>
>> >> Ronnie - W5SUM   Sum Ugly Mudda
>> >
>> > --
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>
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