I just bought a white rocker 1976-1979 Ampeg V4B for 480 dollars locally. It has brand new Sovtek 7027's and plays beautifully. No hiss, very quiet when not playing, no hum, etc. I love it. I have now read that these things need new capacitors after 30 years and may have problems if they aren't replaced. The local tube amp expert quoted me at $250(!!) to replace these, as he said there is extensive reconfiguring involved. I am pretty competent with solid state electronics, and good with a soldering iron. Is this a job I can do myself? Cap kits are only 60 dollars on fliptops. I am aware that there are very high voltages in some of the caps, and would ensure that each one is discharged before working on them. What do you guys think? I don't want to pay 250, as I already paid quite a bit for the amp. (maybe a bit too much, but this is cheaper than the average price on ebay these day). Also someone is offering to sell me an ampeg white rocker SVT with new tubes and caps for 750 dollars. I think i'd rather buy that than drop 250 on this V4. Any thoughts?