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Hi folks, first up, HAPPY NEW YEAR !! After successfully procrastinating and then letting life get in the way, I've finally finished the CAD schematic for my Mk IIB 100 simul/export/rev/GEQ. Last night I put it in the wrong section, but now it's in the Mark Series for all the "true...

Hi folks, first up HAPPY NEW YEAR !! After successfully procrastinating and then letting life get in the way, I've finally finished the CAD schematic for my Mk IIB 100 simul/export/rev/GEQ. Now I don't profess it's absolutely error-free, but it's prett **** close. All the voltages are...

Quick note to wish all U guys in USA storm-affected areas all the very best.. Not a time to talk about keeping materialistic gear safe - the meda coverage here is more about keeping yourselves/families safe!! I bags not having to secure that broken crane in NY.. definitely one for Superman.. Dave

Here's a project I knocked up after buying a 5E3/hybrid mongrel thing. The builder had a single input cascading both sides of V1, a toroid tranny with no centre-tap BUT still used a 5Y3 with a diode c/tap (modified hybrid Graetz rectifier). And some really "unusual" changes - DC heaters for V1...

My IIB 60w rev,non-eq has developed a strange and annoying symptom. Usually on startup, on clean ch, the amp will sound dull, lifeless.(Bright sw is pulled). It's not dramatic, and it's only really AFTER the treble returns than I can convince myself I'm not dreaming. After a variable time of 5...

OK, so I'm comparing my IIB's, and notice one of them DROPS volume when the gain boost on m/vol is pulled.. I check the other one, and then check the IIA and yep, they both INCREASE gain when pulled.. Hmmnn, what gives.. Discounted the switch as culprit and also checked shorting between...

Hi folks, long story short, I want to rid my baby of a reverb mod - looks like someone wanted to add more reverb to the lead channel via a pot on rear chassis. I need to know for the lead drive pot to RP-9A pramp board.. top lug goes (eventually) to earth. Fair enough. middle goes directly to...

G'Day, here's some combo weights as reference, for anyone who's looking around trying to get shipping quotes.. obviously they vary a little with speakers, and reverb tanks/tranny's and fans, and I suspect the hardwood are a little heavier, but it's a guide. Mark1 60w export in roadcase : 37.1 kg...

Here's the skinny: MkIII simul head, all 4 6l6's running. Mix of Boogie, Sylvania 12ax7's. Reverb run at 3 usually, presence about 2.5. Gtr input about 7, pulled. All tones around 5. Master about 2.73 to 3 for CLEAN channel. Here's my dilemma.. comparing to my origMk I, IIA and IIB, at these...

Folks, I finally got the amber and blue pilot lights, with a ton of help from Dave P. Kudos DP.. They are direct from Solico (via distributor).. (Nebraska and Small Bear didn't turn out..as with all the other leads I tried... lucky email is free as I sent a gazillion emails around the...

I may not be the sharpest pin in the cushion, but isn't this just a teeny weeny bit exxie?? If correct, I'd expect these babies to play songs on command, fix all modal anomalies, auto-correct bum notes and maybe even change key automatically for you.. OR, am I grossly out of touch with high-end...

I'm having a little panic.. I've got Mullard 6CA7's in my 60w MkIIB.. They work OK, but I'm wanting to get some vintage Sylvania 6L6's in there. Am I right in thinking it would have had to be modified to accept 6CA7's? Certainly inside there looks to have been no work around the power tube area...

I've done the filters on my Mk IIA, and am about to do the Mk IIB and the MkIII (the latter is sounding "lifeless" - I read "wet towel" here an it's a good analogy.) Now, I've read some guys also do a few others while insode, eg: preamp board filter(s), bias ct filters etc etc. I can't seem to...

G'Day, I'm trying to get some Solico neon pilot lights for my Boogie mark I, IIA and IIB amps..and have spares also.. Mesa and the Aussie distributor have no stock, Solico don't sell direct. Digi-Key and Antique Electronic Supply don't stock. Am about to email Small Bear, and am awaiting replies...

Hi, I'm looking for an original Mark II reverb tank. AFAIK, it should be stamped Accutronics, with their address. The model will be ink stamped ; 9AB2A1B I'l hoping for the tolex cover and original RCA cable(s) Likewise, does anyone, or the repair guys have any amber Solico pilot lights...

A heads-up for Australians needing transformer work - re-winds, new manufacture and also general circuit work. I've searched far and wide for someone I was happy with to work on my amp. I've just had a mark III tranny made for 240v, and thoroughly recommend these guys. Here's a few reasons why...

Hi, I must be the happiest Boogie owner today!! Just got an orig Mark III blond red stripe head! I need to get it US to Down Under - has anyone used USPS or have any accounts with shipping companies who could help? Regs, Dave B Canberra/Australia

Hi, my "new" amp needed a new power cord - done. While inside I noticed a badly burnt 100ohm resistor off 6L6 pin 2. Replaced. Since then the channel switching won't work and the relay is buzzing when activated. I've traced a signal to the last coupling cap before the relay (.047uf off V3B pin6...