My dear, wonderful friend Jimmy is cleaning out his basement. His basement is a cornucopia of equipment and old... stuff. ANYWAY, he currently uses a newer SVT and 2 8x10 rig, and likes it better than anything else. So, he's getting rid of the stuff in his basement that's taking up room. Like his vintage SVT rig, which he's giving to me. I saw it briefly tonight; it's a 300-watt two channel SVT, which he bought used in 1975. The first channel has selectable mids that are on a rocker switch, as opposed to the knob. Each channel has two inputs, Bright and Normal. (I don't know if there were different models of SVTs in those days.. but that's what I've got. ) It needs new tubes, and a few repairs, but I think I can handle paying for those. At the very least I can re-tube Channel 1 and do the other when I feel like it. This is quite a step up for me, in terms of amplification. It sure beats the hell out of the Peavey combo I'm using now! But I have a few questions- 1.) At the moment it doesn't work. Considering I'm getting the head AND an 8x10 from the same year for free, is it worth re-tubing and restoring it? 2.) Is there someplace I can date it using a serial number? 3.) Would the long-term upkeep costs of a vintage tube amp outweight its usefulness? I have to admit, amplification, especially vintage, is something that I am totally in the dark about. Any help anybody can offer would be appreciated.