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I've heard there are MIM green disc caps in the Marks that are junk but don't know the details. Are there specific ones to look for and are these here the green caps of death and doom?

The obvious issue with this 400 are the shot 100ohm (brown black brown) carbon comp R's for each side of the heater filament power socket lugs that span the first 2 power sockets. There are only these 2 heater CC R's in the power section. I've seen 2W carbon comps on a green stripe crumble so...

Next up is the Bass 400 which I bought locally in Denver non-working a few years ago. It's one of the "2 ohm" versions, dated 7/89 and B114x, so one of the last ones. It has the 561180 OT so I'm wondering what OT the non- 2ohm versions used and if the 400+'s or early 400+'s use the same 561180.

Long overdue bass amp repairs. And something to look for if your Fathom/M6 cuts out. I picked up a Fathom that was explained as it was working fine and then just cut out. The previous owner took it to an amp tech who was stumped, called Mesa and decided the amp would be too costly to repair, an...

K121= 6/11/81 Thank you Jeremy!

I finally just saw the Brad Whitford hardwood KRG coli's. Very sexy. Mesa's GEQ is take it or leave it for me but my eyes hear a completely different tone on those coli sisters... Talk about a three-way! Too bad they are split up now. They are K119 and K121, a couple of the earliest I've seen...

I'm going to answer this question with the same answer to Jimmy Pop's "you know what I really want in a girl?" me

Hurry hurry step right up and get your Mesa 'IB', recti and IIC+ preamp boards here. (Ebay from Ukraine). Hurry hurry! Anyone else catch these boards on ebay? I can finally own a IB!!!

I came across K152 on reverb in Italy. The seller was kind enough to put up the K, chassis date and guts. I can't make out the RPxx on the pcb but the tracings look like my SP9A's on the V1 V2 side of the board. They do not look like my RP 8C or SP 8B coli's. Between 8/18 and 8/26/81 there is a...

The no serial # coli is a dead give away to the one legitimately listed. I don't miss reverb.

Jump on it. I no longer have a reverb account cuz it's bad for my health otherwise I would have bought it instead of replying. It's a no brainer since you're right down the road and I'll put a few franklin's over what it runs you if you don't keep it.

And Mitch, blast that bitch thru the full stack and step into the wind tunnel! It was originally paired with the halfbacks: 4JB EV wl MC90 up CEL/EV 360W 4YB V30 wl MC90 up CEL/VNTG (this being a later version of course) and the various combinations including VS-12 and...

It would seem there are some observant coli watchers here that go back many years. I'm having serious doubts the pre-K100's exist. We are talking face plates and Mesa so random one-offs have to be expected like a 14350B serial on a IIB+ or the early K Racer had. The sampling size of what I've...

the socket rails got thicker at some point after k123, maybe when they switched to SP/RP 9A This is my 2nd coli with a crossed out chassis letter

K123 No date but predates my 58X coli which has SP 8C while K123 has SP 8B- I have not seen this pre board before With K110 being 4/14/81 and K17x at 8/26/81 it's roughly 16 K's per month in between making this a '81 Taurus. The bull!!! This means my 58x coli was a regular production K that...

Extremely cheap moog voyager xl https://cosprings.craigslist.org/msg/d/colorado-springs-moog-minimoog-voyager/7472112810.html

Anyone want to trade me a original mu-tron bi-phase with pedal for a NOS MF-104M?

A rare beast for a rare beast? I would like to trade a MF-104M SD super delay or 2 NOS MF-104M's for a boogie coliseum, preferably a purple stripe non simul-class but what do you got? I have a few mark IIB coli's and a blue stripe one so I'm all ears for a C (non-plus) or the III's before blue...

Sledgehammer- yes. Watching IIC+ prices go up is like watching the fuel guage go down driving with a 4 barrel 460. The latest S I saw stayed on the market a while ($5500?) but I no longer see it. Now there's a Cincinnati local pickup SX one over 6k. New filters but the blue bling doesn't look...

That's been changing even with these loose, wimpy, temperamental, no balls boat anchors. In an age where the IIC+ rips into 5 figures it's all relative but the little brother seems to be coming into age. It only took about 42.0 years. Unless you count the opinion of Brad Whitford, Keith...