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Never. Ever. Ever. Ever. EVER, use PayPal Friends And Family option to send payment for anything you are buying, where you do not already have a FULLY trusted relationship with the other party!!!!! By doing so you lose ALL buyer protection that PayPal would give you if you had simply used the...

It was actually a tube. It checked fine on my tube tester but that doesn't cover all possible operating modes. Strange that it would hum in triode mode, and not pentode mode, but it did. So, the 10/45/90 front panel switch is only correct in its labelling if the tube is set to pentode mode...

Update: Did the tube pair swap check, narrowed it down to a pair of STR 447s. Put in a well matched pair of spares, the hum is still there. I guess I'm going to have to pull the chassis and check to see if any resistor values around those tube sockets (screen resistors) may be off value and...

I've noticed that my Mark V 90 has developed a bit of a hum in channel 3, only in 45 and 90 watt modes. And only when the rear panel triode/pentode switch for channel 3 is in triode mode. 10 watt mode has no hum, and no power mode hums in either channels 1 or 2. Neither does tube/diode...

My dad taught me the cowboy chords when I was still in elementary school. I actually became interested in learning the guitar beyond that point around the age of 20.

Serial number starts with MKV-0056XX whatever year that is. My MKV head starts with MKV-015XXX. I don't know that it matters. The amps are identical other than the cabinets, as far as I can tell. They sound pretty much the same and work the same. As I understand it, the MKV serial...

Learn to use the tone controls and EQ properly. Set right, the Mark III overdrive is unbeatable by ANY pedal at ANY price. If you think you need a pedal, you really need to learn to run the amp correctly instead. Start by (A) dropping the bass control down low, two or less. And (B) start...

Why replace a "small board" when components can be replaced? Got a big hole burned through it? There are only a few boards in a Mark II. Preamp, power cap board, output tube board, EQ assembly, EQ circuit board. Far as I can remember, that's the list. So what's wrong with yours?

Location: Melbourne, FL. For sale: Mesa/Boogie Mark V:90 combo with matching Mesa 1x12 half back extension cabinet. Both cabinets are quilted maple, with wicker cane grilles. There is a SLIGHT color mismatch between the two cabinets. Grilles look like a perfect match. Edge piping IS...

Does it look like an EQ might have been installed and removed afterwards? Look at the mount points for scratches, signs of screws having been installed and removed, etc. That would make sense given that it's a remarked chassis. So it's from an earlier period, pre-C+, and rebuilt with EQ...

I had a Mark IVB for exactly one year. Got it at the 2012 Orlando International Guitar Show, traded it for a Mark V 90 and a Mesa horizontal 2x12 (and some cash) at the show in 2013. At the 2014 show I acquired my second Mark V 90 from the same guy. Yes, my Mark IVB sounded really good...

Here's my new thang.....gotta do something about that grille mismatch. The cabinet finish mismatch, I can live with.

To answer the earlier question posed to me, my "new" Mark V 90 has a C90 speaker, and so does the 1x12 extension cab that came with it. NOT my favorite speaker by any means. But not terrible. I have a variety of cabinets to choose from but mostly run my Mark V 90 head with a Mesa 2x12...

As of this moment, all three Mark Vs are still on the Mesa website in the active list of amps. As a result of the Orlando guitar show in Orlando FL this last weekend, I now have not one but two Mark V 90s. This one is a combo in quilted maple, with a (near) matching 1x12 extension cabinet...

There's also always the possibility of getting 3D printed repair parts made for the sliders.

Formal soldering training can be as simple as being taught by someone who's experienced with industry standard practices in the electronics mnaufacturing and repair industries. You can even learn from books, or even online guides. There are youtube videos that can teach you. It doesn't have...

The EQ curve of PA speakers is relatively flat through their rated frequency range. The EVM-12L has always had a guitar speaker type frequency response, not a PA type frequency response. Yes it can be used in a PA application but you'll need to apply EQ to compensate. Its natural fit is...

As of now there is no ban or embargo on the New Sensor tubes from the Reflektor factory. They're in production and shipping to Western countries. For now the supply of those brands is stable. All vendors that usually sell them have them in stock.

Literally not true. The EVM-12L was even advertised by EV as being for guitar. Even in the OLDEST ads where they were advertising the SRO line. There are sound reinforcement/PA application speakers in the same series, but the 12L has always been specifically for guitar usage.

If you think snip and solder is the only safe way to handle a PC board, then I must assume you've never been formally trained in soldering techniques. There are times where snip and solder is required but Mesa's PC boards are high quality with heavy traces and they don't try to shove too big...