[quote name='rogerds' post='946756' date='Sep 5 2010, 10:31 PM']serial is F0 plus 5 digits so I believe that makes it 79 /80 and, by the looks of it, has spent many of those years being thrown in the backs of transit vans[/quote]
It makes it 1980 from my understanding. Yours looks a lot tidier than mine which is 1978 (the paint does tend to peel around the back from the valve heat) but they are such great amps. They are heavy... I added a flight case to mine & now it is totally unliftable That's a great price & I reckon you'll miss it.