Hole size for Jelco tonearms

[flasher1]

Does anyone know the hole size for the following Jelco arms?
SA-370h
TK-850m
I looking for the size of the hole to mount the arm.
Thanks,

 

[vinylkid58]

The 370H arm pillar is 18mm in diameter. So a 3/4" hole would be fine. Don't know if the 850M is the same?

jeff

 

[MRL_Audio]

All this info is at VE. Grab a manual and start drillin’

 

[markd51]

I take it you don't have the arms on hand to measure their Mounting Bases?

I looked on Vinyl Engine, but didn't see those specs listed. Maybe I wasn't looking in the right place?

Might be best to hold off on drilling until you have parts in hand.

 

[Grbluen]

This is as precise as I could get.

 

[flasher1]

The 370H arm pillar is 18mm in diameter. So a 3/4" hole would be fine. Don't know if the 850M is the same?

jeff

Thank you.

 

[vinylkid58]

Hey, no prob. I've uploaded a drawing for the SA-370D, which is virtually identical to the 370H, just the arm is 10mm shorter. My 370H drawing isn't very clear. I also measured my 370H just to confirm the drawing, and it's spot on 18mm.

jeff

 

[Onebean]

@flasher1 I just drilled the hole for my TK850L, and the manual calls out for metric size close to 1.18" if my memory serves me correctly. This is only a clearance hole, and I couldn't find that size, so I drilled it 1.125" and it worked fine. The TK850 slides into a pedestal, so the more important mounting holes are the 3 that locate and hold the pedestal in place.