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I'm on a quest for a blackface Super Reverb and will be parting with my old Boogie IIB to fund the purchase. I've had this amp for about ten years. I bought it from Groove Tubes main headquarters in Southern California. I had it sent to Mesa Boogie and Mike Bendinelli went through the amp and...

I sent my boogie into Mesa to get a tune up and to get the upgraded effects loop circuit. This was done about 4 or 5 years ago. Can someone tell me if this is a series loop or a parallel loop. I'm trying to figure this out. I would love some input on the differences between these types of...

Can you substitute KT66 for 6L6 tubes in a mark IIb boogie amp? Has anyone done this? I need to get some new tubes and am looking for something a bit different. -Murf

I just popped a power tube while I was playing...started sounding funny and then sound faded out. Bad smell. One power tube dark, the other bright as a super nova...the bad smell is bothering me...I hope this didn't fry my amp...the strange thing is that now my power light is off and wont...

Has anyone tried replacing their coupler caps in their boogies? Any other amp tuning mods that might be worth trying? I dont want to change anything major, just want to play around with tone. Mike B at Boogie has already done the effects loop upgrade. I've played around with NOS Mullards and...

I have a 'made in England' tube with the logo of the letter 'M' and the letter 'V' above it. It looks very vintage and sounds very nice. Does anyone know what this is? Also have an old GE 5751 in the #1 slot. Its an old tube and sounds great (#1 preamp tube is opposite the input plug isn't it?)...

I just read through 28 pages of posts on the topic here and couldn't find what I was looking for. I called Vibroworld <left message> and just spoke with someone at Mojotone and they couldn't help. I have an old Mk IIB boogie in black tolex and black grill cloth. I need to find the right matching...

I'm converting my combo to a head setup for my Mark IIb Boogie. I certainly don't need a full yard of grill cloth (especially at $54 a yard!!!) Does anyone want to sell a small piece of Mesa black jute cloth that would cover the front grill plate on a short head? -Murf

Mike 'B' at Mesa Boogie emailed me today and they do the mod for $300. The cost has gone up due to the cost of the transformer. Does anyone know if this is the the main transformer or the output transformer? I know the output transformer has a huge impact on your tone. I'm wondering how much...

I have a 60/100 watt version of the Mark IIb boogie. Can Mesa mod this out to make it a simulclass? I got a chance to pop in some Groove Tubes 'substitubes' and the El84s in class A sound awesome! Though I still want to get those clean fender tones as well. Yanking tubes back an forth is a...

I am thinking about getting a pair of these tubes. I have a Mark IIb boogie in the 60/100 variety. Can I run a pair of the Substi-tubes in the outer sockets and keep 2 pair of 6l6s in the inner pair for when I run the amp at 100 watts or should I only run the amp in 60 watt mode when I use the...

I've been thinking about making some hardwood cabinets for my MkIIb combo and extra speaker cabinet and am wondering how different sounding the 15" combo is from the smaller 12" Does anyone have any experience with these amps? How do they sound in comparison to the smaller 12"? I used to own...

I had this post buried in another thread and instead of hijacking that thread away I figured I should repost it here. I figured the preamp tubes were shaping most of my sound. Mike B at Boogie replace all my tubes (preamp and power) when he recapped it and re built the effects loop, etc. I'm...

I've been hanging out reading posts for awhile now and thought I'd jump in and say hello. I've always played through Twin reverbs and took the plung a few years back and bought this Mark 2B. I actually bought it from groove tubes back in 2002 or 2003 ...can't remember. Maybe they were doing some...