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My Boogie MKIIA 60-100 Rev Eq doesn't gig anymore for years now... I know that it's a shame, but one of these days, he will be back ! Because he is still the best and unrivalled amp for dialing the Carlos Santana tone... 8) Below, comfortably installed at home : On stage and reharsals, I...

Well, I have no schematic of the grounding mods - it would be useless as a schematic doesn't show this kind of arrangement. All my detailed and commented pictures have been lost with the steal of my previous laptop, but here are three views of the complete chassis once modified, which I took...

The grounding scheme of the MKIIA and B are total nonsense and mess ! But once redone correctly + some other mods, the MKIIA is unrivalled by its successors, trust me ! But yes, as is, it's a nightmare : full ridden of hum and hiss, coarse settings... Cheers,

Some years ago, I have built a MKIIA-Lator to make the preamp out / amp in usable as an FX loop at low "stompbox" level (-10dBm) : But it requires a rewiring of the PO / AI jacks in the amp itself... Cheers,

Hi Guys ! I am very sorry not to be more present on The Boogie Board these times :oops: ... Moreover yes, my successive picture hosters have collapsed one after the other ! :| I repost my original MKIIA story below : Unfortunately, I do not have this document in a better quality now...

Hello ! Here's the back view of my (now sold along with my Thiele cab) Boogie MKIIB Head, showing the reverb placement, the DC powered silent and compact center fan : The sense of the reverb unit needs some experimentation in order to find the best for low hum. That said, I still keep my...

I retrieved the fichier (dated 07/2011) which listed most of the modifications I have made to my MKIIA : Sorry for the small pictures - if you want more details, feel free to ask. Note : common sense lets you guess that you need enough knowledge, skills and tooling about tube guitar amp and...

Thanks b100g13mk2B ! Yes, the MKIIA is a great amp, which offers improvement possibilities... Except for the weight ! A+!

Most of you Guys have MKIIB, MKIIC, MKIIC+, MKIII et consorts... The MKIIA is less seen, so I decided to repost something about that model, with my pics... 8) :roll: I did a heavy job to make that amp working nearly flawlessly, I mean : no adverse noise (hum, pops, scratches, Larsen) at any...

If the weight is the issue (and obviously that's the case because you want to sell your long-time companion the MKIIB :cry: ), I suggest you to have a look to the DV Mark amplifiers. I tested or heard several of them in my local shop to attest that it's good equipement - and record-lightweight...

I disagree. I agree. A+!

I had both (60 100 Rev Eq), worked on both to make them work as expected (I opened one thread for each). They sound very close. I kept the MKIIA because it was quieter. My advice : keep your IIA and buy the IIB - and then compare - and then sell the one you don't want to keep - unless you...

Indeed ! I was in the same feeling, alagami... But the result will be worth the expense ! I'll look to that accurately when at home. But I had the relay PSU on the preamp board also, not separated, so like yours... EDIT : Yes, I confirm that the relay supply on my MKIIA was on the preamp...

On my MKIIA, under mains voltage at circa 226VAC/50Hz and voltage selector switched on 240VAC, amp at idle, no signal, 100W position. secondary transformer HV = 2X314VAC + 53VAC tap. A+ = 424VDC B+ = 422VDC C+ = 411VDC D+ = 371VDC 6L6 plate = 423VDC 6L6 G2 = 422VDC 6L6 grid bias = -48.5VDC Of...

Hi Alagami, Some years ago I posted a thread on the forum about my MKIIA 60/100 Rev. Eq. and how I could get rid of the adverses noises, humzz, buzzzz there was in the amp factory-stock, because mine was untouched. And it wasn't the tubes, not really the caps, but mainly the wiring, the...

Sorry to answer so lately... The Boogie MKI, MKIIA and MKIIB amps offers a booster facility built inside the amp, accessible via a jack under chassis and (on the MKIIA and B at least) a "pull boost" switch on the Master1 pot. With some modification, this boost function can be footswitchable...

NEVER use power Boogie replacement transformers from TAD. I bought one for restoring a MKIIB, and it was a PURE JUNK, defective right out of the box because the laminations were shorted by the 4 assembly screws... The resulting high Eddy currents made the transformer unusable (immediate...

Hi domglop78, No... Yes... Amplifier = Modified 1980 Boogie MKIIA 60/100 Rev. Eq. (S/N°4915) with ALTEC 417-8H SII speaker. Volume1 = 7 Treble = 7 Bass = 5 Middle = 5 Master1 = 3 to 7 * Lead Drive = 7 to 8 * Lead Master = 2.5 to 3 * Presence = 7 Reverb = 4-5 Equalizer = OFF Booster =...

I did not used it much these times, but things are changing as my band enters into an Afro-Cuban set for this year : My Boogie MKIIA dressed in Tolex suit with most of my guitars : My Boogie MKIIA dressed in Hardwood suit with my Gibson ES335-TD : What Ettore Bugatti said about cars "le...

Hi b00g13mk2B, Sorry to answer so lately, I am not so often on the BB forum these times - and you may have found the key to your problem in the meantime... I do not remember if I explained it, but I rewired my MKIIA's PREAMP OUT POWER AMP IN and SLAVE OUT jacks : - the PREAMP IN POWER AMP OUT...