[Amps] 1/4" Panel bushing and insulated Couplers Needed

[Joe]

I use el cheapo 1/4" like headphone jacks,

Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 3/14/2017 10:45 PM, Jim Thomson wrote:
> Date: Wed, 15 Mar 2017 10:04:45 +0800
> From: Alek Petkovic <vk6apk at bigpond.com>
> To: AMPS <amps at contesting.com>
> Subject: Re: [Amps] 1/4" Panel bushing and insulated Couplers Needed
>
> I get all my 1/4" panel bushings from old potentiometers. I also had an
> idea, that KM1H sold them.
>
> Some of the CNC shaft couplers on Ebay, are insulated but I don't know
> what sort of voltage or frequency the insulation is rated to. I just use
> the all metal ones and a piece of 1/4" plastic, phemolic or fibreglass
> shaft.
>
> 73, Alek
> VK6APK
>
>
> ###  .25 inch solid Delrin rod works good.   As does .25 inch solid
> fiberglass. Where .25 inch solid delrin doesnt work is when trying to use it
> on heavy torque items like vac variable caps, it will want to do a partial twist
> as shown on the turns counter.   Delrin works good on air variables  etc.
> You can also use bigger diam solid delin like .375  and then machine down the
> ends  to .25 inch.  Then it wont twist on you.
>
> Jim  VE7RF
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