[quote name='iconic' timestamp='1345317450' post='1776289']
If you mail Messers E ball, they can tell the build date (birthday!) of the bass, options if any, and where it was sent to, as in what dealer worldwide...all free of charge.
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Not for pre EB, it's a seperate company.
Someone could of been sneaky by rubbing the '77 neck date off making it essentially a full on '76, it's quite common to have no neck date and as its got (I presume) the TM logo etc it would be taken as '76. Not that I'm suggesting that!
No one is 100% certain about the preamps as they are covered in epoxy goo, John East's mm circuit is based on a '76 he has tested using a scope and measuring all the values carefully but (and me and mcnach fell out over this which actually made us best mates after but that another story!) it does not allow for any tolerances of the components at the time, even now basic electronic parts are listed as +/- 10% plus Leo might of bought boxes of bits from here there and everywhere, I don't think they were made under ISO9002 regulations if you know what I mean?