Marshall - Bluesbreaker II (BB-2)
- goaltoday
- Breadboard Brother
Hi! A friend of mine wants to change the range of the tone control. Anyone has got the schematic?
Some pictures he posted:
https://img209.imageshack.us/my.php?ima ... ll2jb5.jpg
https://img48.imageshack.us/my.php?imag ... acana3.jpg
https://img115.imageshack.us/my.php?image=c12gk5.jpg
Million thanks!
Some pictures he posted:
https://img209.imageshack.us/my.php?ima ... ll2jb5.jpg
https://img48.imageshack.us/my.php?imag ... acana3.jpg
https://img115.imageshack.us/my.php?image=c12gk5.jpg
Million thanks!
- The Rotagilla
- Diode Debunker
Try emailing Marshall tech support. I've found them very helpful in the past.
- goaltoday
- Breadboard Brother
Yes. Someone send it to me but later I tried emailing Marshall tech support as Rotagilla told me and they send it me too. So just email them, very nice peolple.
If they don't send it to you PM your mail.
If they don't send it to you PM your mail.
- frank.clarke
- Breadboard Brother
Information
Unless they have changed everything, the cap on the tone control would be worth looking at.
What is the clean boost, just a diode lift?
What is the clean boost, just a diode lift?
There's a fet/tranny arrangement which i think emulates a cathode follower to drive some kind of "FMV" tonestack.Unless they have changed everything, the cap on the tone control would be worth looking at.
I'm afraid not.What is the clean boost, just a diode lift?
There you go :
http://thebin.free.fr/FSTBX/bb2.pdf
- frank.clarke
- Breadboard Brother
Information
Thanks, I'm flabbergasted . Boost is the second opamp stage and tonestack bypassed, and something like a Vox tone stack. Well I never, thanks for the schematic!
- bajaman
- Old Solderhand
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a very interesting snippet - the fet gain stage followed by the bipolar buffer driving the tone stack - hmmmm
bajaman
ps: very stable feedback biasing - a very useful fet gain stage - I wonder how it would sound in a ROG type amp sim circuit
bajaman
ps: very stable feedback biasing - a very useful fet gain stage - I wonder how it would sound in a ROG type amp sim circuit
- frank.clarke
- Breadboard Brother
Information
I was wondering why they didn't do that on the Guv'nor Plus, but they rescaled it's tone stack instead, everything got multiplied by 10 (And a bass boost after the volume control, weird). If it isn't broke don't fix it. I would slap people for making "improvements" that change the sound of a successful product. But maybe it sounds so much better, I don't have all the boxes to compare. Sill, I like the Marshall boxes.
<edit: I got a cheap GV-2, it cuts treble in more than one place where it shouldn't. I made major EQ changes on it today. I'll have another listen in the morning.
Yup, just like a chicken sandwich, or the 18th century government.>
Here we go with doubletracked direct-to-soundcard Modded Guvnor GV-2, some poor quality echo on one track:
http://www.guitar-pedals-effects.com/Warrior3.mp3
<edit: I got a cheap GV-2, it cuts treble in more than one place where it shouldn't. I made major EQ changes on it today. I'll have another listen in the morning.
Yup, just like a chicken sandwich, or the 18th century government.>
Here we go with doubletracked direct-to-soundcard Modded Guvnor GV-2, some poor quality echo on one track:
http://www.guitar-pedals-effects.com/Warrior3.mp3
Last edited by frank.clarke on 03 Dec 2007, 10:52, edited 5 times in total.
- Redhouse
- Breadboard Brother
To tangent slightly, I'd like to slap the dumb arse at Wendy's that changed their chicken sandwich. For years thay had the best chicken sandwich, then like in ''03 or '04 it changed, has been not the best ever since....dumb arse's.frank.clarke wrote:I was wondering why they didn't do that on the Guv'nor Plus, but they rescaled it's tone stack instead, everything got multiplied by 10 (And a bass boost after the volume control, weird). If it isn't broke don't fix it. I would slap people for making "improvements" that change the sound of a successful product. But maybe it sounds so much better, I don't have all the boxes to compare. Sill, I like the Marshall boxes.
goaltoday wrote:Hi! A friend of mine wants to change the range of the tone control. Anyone has got the schematic?
Some pictures he posted:
https://img209.imageshack.us/my.php?ima ... ll2jb5.jpg
https://img48.imageshack.us/my.php?imag ... acana3.jpg
https://img115.imageshack.us/my.php?image=c12gk5.jpg
Million thanks!
lost images
frank.clarke wrote:I was wondering why they didn't do that on the Guv'nor Plus, but they rescaled it's tone stack instead, everything got multiplied by 10 (And a bass boost after the volume control, weird). If it isn't broke don't fix it. I would slap people for making "improvements" that change the sound of a successful product. But maybe it sounds so much better, I don't have all the boxes to compare. Sill, I like the Marshall boxes.
<edit: I got a cheap GV-2, it cuts treble in more than one place where it shouldn't. I made major EQ changes on it today. I'll have another listen in the morning.
Yup, just like a chicken sandwich, or the 18th century government.>
Here we go with doubletracked direct-to-soundcard Modded Guvnor GV-2, some poor quality echo on one track:
http://www.guitar-pedals-effects.com/Warrior3.mp3
broken link