The Boogie Board

Discussion Forum for Mesa Boogie Products
It is currently Mon Jul 24, 2017 1:48 pm

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 19 posts ]  Go to page 1, 2  Next

Simul-class?
Yes 46%  46%  [ 6 ]
No 54%  54%  [ 7 ]
Total votes : 13
Author Message
 Post subject: Yes or No - Simul-class?
PostPosted: Thu Mar 16, 2017 7:42 pm 
Offline
Donating Member

Joined: Wed Jun 26, 2013 3:56 pm
Posts: 1058
Location: Norfolk, CT
I say no. What says you? I asked for gut shots and I suggested calling Mesa to confirm my suspicions. He insists it will sell for this price, we'll see won't we?

https://reverb.com/item/4596647-mesa-bo ... -plus-1984

_________________
Hendrix/Dimebag influenced, JP2C, Mark llC++, Steinberger GR4's


Top
 Profile  
 
PostPosted: Thu Mar 16, 2017 10:11 pm 
Offline
Road King
User avatar

Joined: Wed May 18, 2005 2:57 pm
Posts: 4039
Location: MIA, NYC, CA
Very difficult to know. As a long head owner myself, it's impossible unless you see guts or the code on the output transformer.

_________________
'92 Dual Recto Rev. D, Volume mod
'84 Mark IIC+ Coliseum
'85 Mark IIC++ DRG, V1 mod
Mesa Standard 4x12
1980's EV Thiele
Sold:
'92 Dual Recto Rev. C
'92 Dual Recto Rev. E
'05 Dual Recto 3ch
'84 Mark IIC+ DR
http://www.TheBoogieArchives.com


Top
 Profile  
 
PostPosted: Thu Mar 16, 2017 10:41 pm 
Offline
Mark III

Joined: Sat Apr 25, 2015 1:22 am
Posts: 270
Location: MO
Sure, I'll take him at his word. I'll believe anything :cry:

But that's quite the asking price, wow

_________________
PRS 408
Les Paul Custom 08
Edwards Alexi
Mark V
JP2C


Top
 Profile  
 
PostPosted: Fri Mar 17, 2017 9:56 am 
Offline
Mark III

Joined: Tue Apr 17, 2012 10:01 am
Posts: 252
I voted "no", it is not Simulclass.

It looks like a 100/60 model. There is no switch on the back for "Class A" vs "SimulClass".

My .02.

_________________
Lefty guitars: Gibson SG standard (1977) • Gibson LP custom (1979)
Amps and such: Mesa Boogie Mark IV-B • Mesa Nomad 45 • Peavey Vypyr Tube-60 • Effectrode Blackbird • Kingsley Jester • AMT SS-11a • Zoom G5


Top
 Profile  
 
PostPosted: Sat Mar 18, 2017 4:58 am 
Offline
Dual Recto

Joined: Tue Feb 07, 2006 11:21 pm
Posts: 2814
Location: North Alabama C+ Mafia-Kingpin
The position of the screen-grid resistors on the outer power tube sockets will be a clue, just like the output transformer number. Stupid high price, though. Walk away, like Joe Walsh says.

_________________
"One of these days, I'm gonna change my evil ways....... one of these days.


Top
 Profile  
 
PostPosted: Sat Mar 18, 2017 1:22 pm 
Offline
Bottle Rocket

Joined: Thu Apr 07, 2016 2:05 pm
Posts: 18
Price is way too high!

_________________
Own:
JP-2C, '84 MK IIC+
Mesa 2x12 Recto Cab

2012 ESP mx250ii
2015 Gibson SG Standard upgraded with chrome "Het-Set"
1997 ESP KH-2

Sold:
Early 90's Mark IV, Mark V:25, .50 Caliber+


Top
 Profile  
 
PostPosted: Sat Mar 18, 2017 3:22 pm 
Offline
Mark IV

Joined: Fri Jul 01, 2011 4:09 pm
Posts: 794
Location: Looking over the shoulder of the guy who lost his apples - not that he really ever had any to lose.
bgh wrote:
I voted "no", it is not Simulclass.

It looks like a 100/60 model. There is no switch on the back for "Class A" vs "SimulClass".

My .02.

IIC and IIC+ Long Heads didn't have the "Class A - SimulClass" switch. They had a "Full power - 1/2 power" switch.
So the only way to tell would be as JB says above:
"The position of the screen-grid resistors on the outer power tube sockets will be a clue, just like the output transformer number"
The OT is the most obvious way to tell.


Top
 Profile  
 
PostPosted: Sun Mar 19, 2017 6:55 am 
Offline
Mark III

Joined: Tue Apr 17, 2012 10:01 am
Posts: 252
gts wrote:
bgh wrote:
I voted "no", it is not Simulclass.

It looks like a 100/60 model. There is no switch on the back for "Class A" vs "SimulClass".

My .02.

IIC and IIC+ Long Heads didn't have the "Class A - SimulClass" switch. They had a "Full power - 1/2 power" switch.
So the only way to tell would be as JB says above:
"The position of the screen-grid resistors on the outer power tube sockets will be a clue, just like the output transformer number"
The OT is the most obvious way to tell.


Thanks. Did not know that.

Would that mean then that they ran in SimulClass all the time? Or was it controlled by the "Full power - 1/2 power switch"?

My understanding was the outer pair were treated differently that the inner pair when running in SimulClass mode. (It sounds great on my Mark IV).

_________________
Lefty guitars: Gibson SG standard (1977) • Gibson LP custom (1979)
Amps and such: Mesa Boogie Mark IV-B • Mesa Nomad 45 • Peavey Vypyr Tube-60 • Effectrode Blackbird • Kingsley Jester • AMT SS-11a • Zoom G5


Top
 Profile  
 
PostPosted: Sun Mar 19, 2017 8:27 am 
Offline
Mark II

Joined: Tue Feb 23, 2010 10:32 pm
Posts: 65
Location: Tampa Bay, Florida USA
I voted not Simul-Class.

Not a fan of the Class A tones at 15 watts on a Simul-Class amp.

_________________
Amps:
1982 Mesa Boogie Mark IIB (100/60, EQ, EVM-12L)
1966 Fender Princeton Reverb
1968 Fender Vibro Champ
1969 Fender Super Reverb
1969 Fender Twin Reverb
1969 Marshall 1930 (18 watt)
2016 Marshall 1962hw Bluesbreaker


Last edited by DC3 Gridlock on Sun Mar 19, 2017 10:37 pm, edited 2 times in total.

Top
 Profile  
 
PostPosted: Sun Mar 19, 2017 5:03 pm 
Offline
Dual Recto

Joined: Tue Feb 07, 2006 11:21 pm
Posts: 2814
Location: North Alabama C+ Mafia-Kingpin
Simul-Class at 15 watts with Sylvania 6CA7's in the outer sockets for the mid-gain sounds really do it for me. Just my opinion, though.

_________________
"One of these days, I'm gonna change my evil ways....... one of these days.


Top
 Profile  
 
PostPosted: Sun Mar 19, 2017 8:48 pm 
Offline
Mark III

Joined: Sat Apr 13, 2013 3:56 pm
Posts: 183
OT will be stamped simul-class. Long heads did not have the class A/ Simulclass switch on back. The full power 1/2 power switch takes its place and function. I have seen the class A/ simul-class label on front of long heads (put over the full/1/2 switch..) The Full and half switch is your class A/ simul class switch IF it is infact a simul class head.

_________________
"Gone to the Mark side of the force."


Top
 Profile  
 
PostPosted: Mon Mar 20, 2017 6:51 am 
Offline
Mark III

Joined: Tue Apr 17, 2012 10:01 am
Posts: 252
kippiejr wrote:
OT will be stamped simul-class. Long heads did not have the class A/ Simulclass switch on back. The full power 1/2 power switch takes its place and function. I have seen the class A/ simul-class label on front of long heads (put over the full/1/2 switch..) The Full and half switch is your class A/ simul class switch IF it is infact a simul class head.

Thanks. From an earlier post, I was wondering if that was true. You just confirmed it.

This is really a very cool forum. I have learned quite a bit in the time I have been here.
I just wish I was able to return the favor more.

_________________
Lefty guitars: Gibson SG standard (1977) • Gibson LP custom (1979)
Amps and such: Mesa Boogie Mark IV-B • Mesa Nomad 45 • Peavey Vypyr Tube-60 • Effectrode Blackbird • Kingsley Jester • AMT SS-11a • Zoom G5


Top
 Profile  
 
PostPosted: Mon Mar 20, 2017 10:23 am 
Offline
Donating Member

Joined: Wed Jun 26, 2013 3:56 pm
Posts: 1058
Location: Norfolk, CT
I've received an email from the owner insisting that the amp in question is Simul-class, so my apologies. He also insisted he will get $5K. Good news all around!

_________________
Hendrix/Dimebag influenced, JP2C, Mark llC++, Steinberger GR4's


Top
 Profile  
 
PostPosted: Mon Mar 20, 2017 11:18 am 
Offline
Mark IV

Joined: Fri Jul 01, 2011 4:09 pm
Posts: 794
Location: Looking over the shoulder of the guy who lost his apples - not that he really ever had any to lose.
JOEY B. wrote:
Simul-Class at 15 watts with Sylvania 6CA7's in the outer sockets for the mid-gain sounds really do it for me. Just my opinion, though.


+1
Same here. When I first found and put a pair of Sylvania EL34/ 6CA7's in my Simul C+ and played it in Class A mode I was stunned, even blown away.
It was like getting the fatness of Sylvania 6L6's with the chime of EL34's.
I was so blown away I played the C+ in Class A mode only for weeks. In fact I still play it in Class-A mode quite a bit.
No other EL34/ 6CA7 does this.
Find yourself some old Sylvania's, you'll be glad you did! (It may take awhile as they are no longer made but they are out there.)


Top
 Profile  
 
PostPosted: Mon Mar 20, 2017 12:54 pm 
Offline
Mark III

Joined: Sat Apr 13, 2013 3:56 pm
Posts: 183
I know the seller, stand up guy and knows his C+'s. If he says it is, count on it. Drive that market...... :mrgreen:

_________________
"Gone to the Mark side of the force."


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ]  Go to page 1, 2  Next

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group