Search found 2833 matches

by JOEY B.
Thu Apr 05, 2018 7:54 pm
Forum: Vintage Amps (Before 1991)
Topic: I believe no fix for it..MKlll weak Reverb
Replies: 8
Views: 4378

Re: I believe no fix for it..MKlll weak Reverb

evilsole wrote:On my 89" green stripe Mark III, the reverb is also somewhat weak but when I activate the reverb using the eq/reverb footswitch the reverb becomes much stronger for some reason
It's in the manual under the reverb section.

http://www.mesaboogie.com/media/User%20 ... %20III.pdf
by JOEY B.
Wed Feb 28, 2018 7:47 pm
Forum: Vintage Amps (Before 1991)
Topic: The best substitutes of MESA STR-415 & 416
Replies: 11
Views: 6194

Re: The best substitutes of MESA STR-415 & 416

The Sylvanias do sound best, but they are $$$, hard to find, and good luck with how matched they actually are. The matching of some online retailers are not at the plate or bias voltage of the Mark series Boogies, so they might not match when installed in your amp. I have seen this on more than one...
by JOEY B.
Tue Feb 27, 2018 7:30 pm
Forum: Vintage Amps (Before 1991)
Topic: The best substitutes of MESA STR-415 & 416
Replies: 11
Views: 6194

Re: The best substitutes of MESA STR-415 & 416

Save your money, beat the bushes and wait for some good used Sylvanias to come up for sale. You will be glad at the peace of mind when it comes to using your amp with the tubes it was designed around. A good used Sylvania is just as reliable as ANY new production tube, if not a bunch more. Just sayi...
by JOEY B.
Fri Feb 23, 2018 8:23 pm
Forum: Vintage Amps (Before 1991)
Topic: Craigslist Mark I Curiosity
Replies: 5
Views: 2653

Re: Craigslist Mark I Curiosity

No serial # , no deal !
by JOEY B.
Fri Jan 19, 2018 1:18 am
Forum: Vintage Amps (Before 1991)
Topic: Look at 'em there, pretty maids all in a row.
Replies: 7
Views: 3421

Re: Look at 'em there, pretty maids all in a row.

I have all Sylvania power tubes in my C+ Boogies. The ONLY way to go in my opinion. I have a box in the top of my closet that I have expressed to my family to NOT sell in a yard sale after my death. The 416's were much harder to come by, for sure. I bought one pair on Ebay that were listed as MESA E...
by JOEY B.
Mon Jan 08, 2018 10:20 pm
Forum: Mark Series
Topic: IS the Mark IV always simul class?
Replies: 4
Views: 2038

Re: IS the Mark IV always simul class?

stephen sawall wrote:Class A or Simulclass. The Triode / Pentode mode has no effect on this in any way.
The Pentode/Triode switch affects the outer pair of tubes in Simulclass mode. Not sure how it works when the amp is switched to Class-A mode (outer tubes only).
by JOEY B.
Fri Jan 05, 2018 3:27 am
Forum: Vintage Amps (Before 1991)
Topic: Mark IIC+ vs Mark V C+ Mode
Replies: 4
Views: 2588

Re: Mark IIC+ vs Mark V C+ Mode

Was it a 60W or a 60/100 set to 60W mode? Both of which are Pentode. If you like the "Pull Deep" use it on the C+. The only "triode" in the C+ is in the outer sockets of the Simulclass models, BTW.
by JOEY B.
Thu Nov 02, 2017 10:30 pm
Forum: Vintage Amps (Before 1991)
Topic: MKIIc+ Tubes
Replies: 9
Views: 4507

Re: MKIIc+ Tubes

MESA branded Sylvania STR-416's are the way to go. Yes they are expensive and hard to find, but WELL worth it. Nothing compares in my opinion. I have a pair of Phillips 7581A's that do the job nicely, as well.
by JOEY B.
Tue Oct 24, 2017 10:48 am
Forum: Mark Series
Topic: Anyone Know If A Boogie Mark I Chassis Would Fit an SOB Cab
Replies: 2
Views: 1525

Re: Anyone Know If A Boogie Mark I Chassis Would Fit an SOB

It should fit. The original Mark I and IIA, along with some of the early IIB's had a wider bolt spacing on the chassis. Anything with the SUS4 mounting and beyond should be the same.
by JOEY B.
Sun Sep 24, 2017 6:41 am
Forum: Mark Series
Topic: Which Mark series transformers are running ~500+ PV?
Replies: 3
Views: 1572

Re: Which Mark series transformers are running ~500+ PV?

I have a bias probe tool that sockets between the valve & the chassis & runs leads (through a shunt) to a DVM. When I mentioned the voltage to Mike B. he didn't bat an eye. Is what it is I guess. Does anyone know if all Colis got hot transformers? Touch your DVM to pin#3 on the PCB trace on the tub...
by JOEY B.
Sat Sep 23, 2017 9:57 pm
Forum: Mark Series
Topic: Which Mark series transformers are running ~500+ PV?
Replies: 3
Views: 1572

Re: Which Mark series transformers are running ~500+ PV?

I do not know why your 105 PT is reading that much voltage. Are you measuring it at pin #3 with the tubes out of the sockets? It should be around 485v. The Coliseums will push around 530V if I remember correctly.
by JOEY B.
Thu Sep 21, 2017 7:40 am
Forum: Vintage Amps (Before 1991)
Topic: Help! Mk. III off moth balls -- suuuper weird noise...
Replies: 1
Views: 1042

Re: Help! Mk. III off moth balls -- suuuper weird noise...

I have heard of the FX return jack contacts going bad if something is left plugged in for long periods of time. If running a short jumper cable from the FX Send to the FX return fixes the noise, then I would highly suspect that this is your problem.
by JOEY B.
Wed Sep 20, 2017 6:10 pm
Forum: Mark Series
Topic: MARK II HELP!
Replies: 2
Views: 1282

Re: MARK II HELP!

Use the Post FX Level knob as the overall volume knob, and set the front panel Master at 4 or higher. Equal the channel volumes with the Lead Master front panel knob.
by JOEY B.
Fri Sep 15, 2017 7:23 am
Forum: Mark Series
Topic: MKIIC+ Export
Replies: 13
Views: 3791

Re: MKIIC+ Export

It is possible that the amp could have the X101 Power transfomer hard wired to the 120V taps, and have no voltage selector switch. I think that I saw one for sale on Ebay done this way.