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effective mass of Jelco tonearms

Can anyone help with the effective mass of Jelco tonearms with detachable headshells [I believe SA 250 or 750}?I've found conflicting values, including 18.5 gms, and other values. Is this without or with headshells, and if with headshells, what is the weight of the headsshell?
boofer

Showing 1 response by hesson11

hesson11
237 posts
 
I have e-mails directly from Jelco stating that the effective mass of the 250 is 18 grams and the 750D is 20 grams, including headshell. They did not say anything about the effective mass including a cartridge. The e-mails are from 2009 and 2010.
-Bob
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