To all you Tube Amp Holders....You will understand the following: Finally i got my Vintage 1976 Ampeg SVT Head re-tubed and let me tell you...that sound that I'm getting is so awesome. Its undescribable. You people who think that technology is getting good in the production of transistor or valve state amps and believe some day that an amp you buy will sound like mine....I'm sorry people. A bit of advice. save up your pennies and buy one! you will never go back.