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Rega RB300 tonearm VTA adjusters

I'm planning to install a VTA adjuster for my Rega RB300.
Which is considered more accurate ? J.A. Michell or isokinetic ?

1. http://www.ebay.com/itm/REGA-VTA-ADJUSTER-FINGER-NUT-BY-J-A-MICHELL-/330315748008?pt=US_Record_Player_Turntable_Parts&hash=item4ce85a52a8

2. http://www.ebay.com/itm/ISOKINETIK-ISOVERT-VTA-ADJUSTER-PLUS-SPEED-NUT-FOR-REGA-/180685503343?pt=UK_AudioTVElectronics_HomeAudioHiFi_Turntables&hash=item2a11b1fb6f
triskadecaphobic
triskadecaphobic OP
82 posts
 
Regarding the 1 1/8 hole needed...
This is the tool for the job, right ?
http://www.ebay.com/itm/Irwin-10239-Unibit-9-High-Speed-Steel-Step-Drill-Bit-7-8-and-1-1-8-/300791331175?pt=LH_DefaultDomain_0&hash=item46088f7967
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triskadecaphobic OP
82 posts
 
As far as the pictures can tell the isokinetik seems to be the only one made of SS where as the other ones are made of Aluminum.
An advantage, I think...
(The Pete Riggle is made of gold and diamonds :-) )
jperry
2,468 posts
 
I have the Riggle VTAF installed on a Michell Gyrodec and it works great
jperry
2,468 posts
 
You should look here also. I just installed one and like it.

http://www.vtaf.com/vtafdescription.html
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