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Question for Ampeg Experts...

Outside of calling in the serial number in on my 810E is there a way to get an idea of the manufacturing date for your cab? Mine is pretty old, but I don't know how old. Someone once told me he thought it was a '74 but I have no idea how accurate that statemeant might have been.
 
Dustinvavak said:
Outside of calling in the serial number in on my 810E is there a way to get an idea of the manufacturing date for your cab? Mine is pretty old, but I don't know how old. Someone once told me he thought it was a '74 but I have no idea how accurate that statemeant might have been.

a '74 SVT 810 cab had a "square" back & no "towel bar". It also had a removable 4 wheel dolly for transport, not the 2 built in kickback type wheels like on the newer models. The original speakers would have been cts/eminence with square Alicno magnets. The grill cloth was silver, similar to the new "AV" model cabs. The input on mine is a single 1/4", but I believe stock was a 3 pin type.

But if your cab states somewhere on it that it is an 810 "E", than its an "newer" cab.
 
8mmOD said:
a '74 SVT 810 cab had a "square" back & no "towel bar". It also had a removable 4 wheel dolly for transport, not the 2 built in kickback type wheels like on the newer models. The original speakers would have been cts/eminence with square Alicno magnets. The grill cloth was silver, similar to the new "AV" model cabs. The input on mine is a single 1/4", but I believe stock was a 3 pin type.

But if your cab states somewhere on it that it is an 810 "E", than its an "newer" cab.


*...I thought the square mags were the Altec upgrade?
 
Square mags should have been CTS.. Also it would have been a 4 connector XLR type if there is an XLR.. 2 pins for signal and 2 pinss to complete the circuit that would turn the amp into standby if the cable became unplugged by accident so as not to fry the amp.. Although I am not 100% on this but I beleive the 1974 ish only had a 1/4" jack.. the older 1969-1970s had the 4 pin XLR and the head would have had 6146 tubes instead of the 6550s.
 
Psycho Bass Guy said:
There was NO "Altec upgrade" for the SVT. CTS was famous for having square magnets, and the Eminence models that replaced them were clones of them.


Thank you. I did not know that. Did other Ampeg bottoms like the 2 15' v4b bottoms have Altecs?