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Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

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With the arm mounted at 214mm and 66/120.9 null points

Posted by VynylTap on January 17, 2010 at 20:13:06:
most carts end up barely fitting due to the cartridge and headshell pins being so close together. Many cartridges will not mount at all at this setting.
Remember, Baerwald / Lofgren A geometry typically pushes most cartridges further out towards the end of the headshell and away from the headhshell pins. The length of the slots is irrelevant in this case as I'm not away of any alignment geometry that could utilize them at the Jelco prescribed mounting distance. Please enlighten me if you're aware of one.
What makes this most odd - Jelco spec's a 229mm effective length - not sure what the null points would be on a cart mounted to that effective length - which is impossible to achieve with every cartridge I have ever seen.
If you look at the technical drawing you posted in your other response, you'll see that the STYLUS is spec'd to fall right at the front of the headshell slots and the distance from the pivot point to the stylus tip SHOULD be 229mm - as I clearly show in the other post it's not even close to 229mm.