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...they're going into a cathode-biased, class A amp? My understanding is that class A/B is push-pull & so the tubes need to be matched, but how does this relate to class A? Also, if the biasing is automatic (cathode) and the amp supports either 6L6's or EL34's will it also allow mixing of the...

Anybody have any recommendations for tubes that sound similar to the old 420's? thnx.

ok, so i'm going to have to retract. Based on my 1st experience, i bought two more of these but they don't sound the same: crap. i'm so tired of tube swapping. i swear i'm going to break down & buy a maxi-matcher one of these days. Just put one of these in the PI (v5) position of my Mark III...

Customer service at Mesa recently quoted me "about $300" for a new short head shell for my mark III. thought you'd all like to know.

http://www.mesaboogie.com/Product_Info/Rectifier_Series/Mini_Rectifier_25/miniRectifier25.html

not mine: http://sfbay.craigslist.org/eby/msg/2562998781.html

3x3! :twisted: from the left: 60w "black dot", 85w "blue +", 60w "no-stripe"

much like the lonestar except that ch1 sounds better: goes from real clean to moderate gain: *very* nice. ch2: ick. (follow up: re: gain, ch2 picks up where ch1 left off & then gets mushy, in fairness though, this was a low volume eval.)

check it out: http://www.musicradar.com/gear/all/amplification/amplification-accessories/tubesync-divo-ov4-400267/review http://www.tubesync.co.uk/ http://www.youtube.com/watch?v=dBQFQxMJrjo looks pretty hopeful: won't have to care about what tubes go in my Mark. The guy in the youtube link...

A while back i noticed that an el34's in one of the outer sockets of my SC Mark had died completely (was dark/cold) but the amp was still working just fine in SC mode. Given that that pair of sockets is not running in "push/pull" mode, does anyone know if it's possible to run w/a 6L6 in one and...

Anybody know if the Bias King can be used measure the bias of tubes in the marks? What about the class A sockets on the SC models? thnx.

Anybody know which pre-amp tubes in a Mark are in "cathode-follower" positions? i'd also like to know why tubes in those spots need to be more rugged. tia.

http://www.mesaboogie.com/Product_Info/Transatlantic/transatlantic-TA-30.html

just scored a 60 watt "no-stripe", mark III for $550 out the door: don't need another one but couldn't pass it up. This one has no reverb & no fan: there's not even a ac socket for a fan to plug in to. Except for the V30 speaker, it appears to be stock: "mb" on the back but no "R" or anything...

not mine but thought y'all might be interested. http://sfbay.craigslist.org/sfc/msg/2119403575.html

Anybody know how to get two Marks going @ the same time? Would i just run the direct out from one into the effects return of the other? Often i'll see stage rigs that include a wall of smaller amps & i'm wondering how it's done. thnx in advance

According to this: http://homepage.mac.com/mesaboogie/dot.html, the gain on R2 was increased as of the red stripe. i'd like to tone this down/reduce the gain on R2 for my blue stripe. Could anyone offer any clues/info on how to go about it? If the solder-work is too complicated, maybe i could...

Anyone know what's involved in changing from triode to pentode for the two outside sockets? Not interested in being able to switch between the two, just wondering if i could manage the mod myself. thnx,

(& sisters) Those of you w/heads & separate cabs might have discovered this already, but if you've got a combo like i do, check this out: The stock speaker cable that came w/the marks is pretty anemic: 16-gauge steel. It's adequate but definitely not "high-fidelity". Over the last couple of...