Hi All! Yesterday, I purchased a Magnavox-era Ampeg V4B amp (with a beat-up, behemoth, 2x15, folded-horn, caster-less V4B cab.) Being constantly worried that I'll disrupt a gig with my gear going down, I feel I need to buy a set of "back-up tubes" (as well as carrying my 3.5lb Quilter Bass Block 800 for a spare.) This brings me to my question: Figuring in I play a wide selection of music (everything but metal), and price vs. performance, what would you guys recommend? Here's a list of all the tubes I need: (2) ECC83/12AX7 (1) ECC82/12AU7 (1) 12DW7 (1) 6K11 (4) 7027 Extra points for the retailer with the best prices... Any and all opinions are most welcome. Thanks!