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Hi!
I've tried looking at the FAWs but i could not find a straight answer... :(
If a tone arm had no cartrige attached, no manual, etc... how would one determine the effective length?
Follow Ups:
Hi,
A quick way to approximate the effective length of a tonearm is to measure the distance from the pivot point to a point midway between the centers of the two headshell slots and then to add a delta of approximately 8.7mm for a 9 inch tonearm and approximately 9.0mm for a 12 inch tonearm.
The delta to be added allows for the fact that a typical cartridge has a distance of 9.5mm from a point directly between the mounting holes to the stylus tip; and the value is a little less than 9.5mm to allow for the offset of the headshell.
Best regards,
BK
this calculation will get you the correct effective length. All you have to do is measure the pivot-to-spindle distance and apply it in the equation.You can use the same equation for any alignment null points. I happened to include the Baerwald null points in the diagram.
Tom
"I'm not crazy about reality, but it's still the only place to get a decent meal." Groucho Marx
Hi.
measure from the tonearm pivot to the midlle of the headshell slot then plus 9mm to get the effective length.
hope this help .
sorry I meant FAQs
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