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Re: [Amps] Variac knob wanted, with 3/8 hole !

To: Jim Thomson <jim.thom@telus.net>
Subject: Re: [Amps] Variac knob wanted, with 3/8 hole !
From: Alek Petkovic <vk6apk@bigpond.com>
Date: Sun, 30 Sep 2018 07:56:51 +0800
List-post: <mailto:amps@contesting.com>
Same problem here.

To get me out of the woods, I had a piece of 1" x 3/8"aluminium bar lying around. I cut it to length and drilled a 3/8" hole through it and then a hole right through the side, to take a M5 tap. I stuck a M5 screw in each side, in lieu of grub screws and used the hacksaw to cut a groove in the end of the bar, to act as a pointer.

Rough enough and good enough until something better is found.

73, Alek. VK6APK

On 27/09/2018 10:44 AM, Jim Thomson wrote:
I desperately  require a knob for my small variac.  The shaft is  3/8"  
diameter.   The max skirt I can handle is

3"...and maybe  3.25" max.   At this point  I will use anything I can get my hands 
on....as long as it has a 3/8" hole for the  3/8"  shaft.




I checked  my supply of knobs....and they are all  the usual  1/4".    And none of 
em can be machined out to 3/8"  either.




If  anyone could help,  it would be much appreciated.  I just require one knob, 
thats  it.




Jim  VE7RF
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