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macOy
Copper Member
Philippines
22 Posts |
 Posted - 09/24/2008 : 13:53:02
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| if I have a stok mt2 what will happen if ill just cut the C35 and C25? what if ill make a switch for those :) |
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Dr. Bob
Moderator
Australia
6593 Posts |
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macOy
Copper Member
Philippines
22 Posts |
Posted - 09/25/2008 : 12:31:12
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hi Doc Bob
Im planing to make a Diezner mod tonight hope it will work and wont burn my Mt-2 hehehe well im just excited i just bought caps this afternoon well thanks for the link doc
Mark |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 09/25/2008 : 14:42:19
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Good luck with your mods! The Deizner is ..."OK"... but take a look at this thread too:
http://www.bossarea.com/forum/topic.asp?TOPIC_ID=4793&whichpage=1
I found I needed to do a bit more work on my MT-2, and the MOSFET mod made the final difference. It now sits in my pedal board and I use it every day. |
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jack
Platinum Member
USA
1418 Posts |
Posted - 09/26/2008 : 04:59:08
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| I have no idea what Keeley does for their mod, but I like it so much, I got 2 of them modded by them... |
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macOy
Copper Member
Philippines
22 Posts |
Posted - 09/26/2008 : 13:21:07
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| Thanks Laurie well i didnt do the diezner mod im afraid, well i just cut the C25 and C35 and put a DPDT switch so that i can return to a stack MT-2 hehehe well simple mod that i did but im happy, im just a newbie so i dont have lots of knowledge, and then i change the led to a supper bright blue hehehe its cool |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 09/26/2008 : 13:54:44
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Hi macOy
It's good that you're keen to do some experimentation with the circuitry.
Just take case that you can return the unit to how it was, if you're not really sure of what you're modding, & it don't work, after your experiments.
Who knows, your mods might become as well respected, as some of the big name boys.
Don't forget to keep looking at the circuit/s, with some study, it will start to make some sense.
Ask your teaches or the local library, for some basic electronic books to help you along the way.
Regards Dr. Bob |
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JCDenton6
Bronze Member
USA
101 Posts |
Posted - 01/15/2010 : 04:18:44
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Hello everyone!! I wish I would've came across this forum sooner
But anyways, I had just gotten into modding pedals, preformed the "diezner" mod to my MT-2 and love it. (as I play death/black metal)
Saw Laurie's reply about this too, but I wonder if anyone has tweaked around with this mod further, maybe a way to get more gain out of it? Thanks
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Edited by - JCDenton6 on 01/15/2010 05:42:03 |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 01/15/2010 : 05:52:17
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quote:
Originally posted by JCDenton6
Hello everyone!! I wish I would've came across this forum sooner
But anyways, I had just gotten into modding pedals, preformed the "diezner" mod to my MT-2 and love it. (as I play death/black metal)
Saw Laurie's reply about this too, but I wonder if anyone has tweaked around with this mod further, maybe a way to get more gain out of it? Thanks
Hi JCDenton6
Welcome to the forum from Australia.
Laurie & a few other guys here have done various mods to the MT-2.
Laurie developed his own specific mod, using MOSFET's for clippers.
You could always try driving the MT-2 with another dirt pedal,
like the SD-1 or the DS-1.
Set the SD/DS-1 for low drive & medium to high level,
that way you will be over-driving the input buffer transistor on the MT-2,
which is effectively more gain, but controllable.
Other members will probably offer other suggestions.
Regards Dr. Bob
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Edited by - Dr. Bob on 01/15/2010 05:53:47 |
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JCDenton6
Bronze Member
USA
101 Posts |
Posted - 01/15/2010 : 07:44:49
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Very cool! Thanks for the welcome
This mod doesn't seem to suck away gain from the pedal, since it's more of a beast now, but I've heard that someone replaced the led with a germanium diode and that added more "cut" to the pedal.
As soon as I get another stock MT-2, I'll make like a mad scientist and see what happens
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 01/15/2010 : 07:52:59
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Hi JCDenton6 and welcome!
The final version of my MT-2 MOSFET mod is here:
http://members.shaw.ca/lauriepedals/info
If you wanted more "gain", try dropping R41 to 470 or 220 Ohms.
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JCDenton6
Bronze Member
USA
101 Posts |
Posted - 01/15/2010 : 08:06:05
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Sweet! Thanks Laurie. I'll try that over the weekend.
Your mods sounded pretty sweet too, sounds more warm and tube like!
I was overwhelmed when I first took a peek at all the different mods out there, but I'm going to try out a few more and post some comparisons
down the road
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Foulacy
Bronze Member
USA
65 Posts |
Posted - 01/15/2010 : 13:04:40
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so I just modded my MT-2 to the allums sustania + tri gain specs with the opamp too. so here are my thoughts:
first thing I did was scrap the opamp. I also have a monte allums ds-1 with the opamp, the opamp completely colors the one in a very specific way that made the two pedals sound VERY similar. I also do not like the opamp and i find it makes things wayyyy too fizzy. much better without it, so if you're gonna buy the allums kit, get it without the opamp and spare yourself $4. (the opamp is the burr brown OPA2134PA)
second thing I did was change the LED brightness at R10, the clear blue LED was BLINDING ME. i used a 3k9 1/4 watt and it is the PERFECT brightness.
I also looked at some of the keeley, diezel and bogner mods. all I had was a .1uF and a few .22uFs laying around so I couldn't do much. but I noticed that in most of the mods, C42 was changed to .1uF. so I tried this out and did not like the result. it made things slightly more "open" sounding, but in a way I did not like. I found the sound a little too airy for metal and preferred it stock.
finally, I did something kind of strange. in the allums mod with the tri-gain switch, you remove the stock diodes and install a 3-position switch with one side being a pair of LED's, the middle being nothing (or both?) and the other side being a pair of 1N34A germanium diodes. well, I didn't like the LED side, the middle position is flat out gross sounding except on lower gain (which allums says it's used for), and the diodes were OK. there are 2 diode spots on the PCB (D4 and D3), and with the tri-gain switch installed one of them remains empty. so instead of it being empty, i put the stock diode back in it. this sounded good, very good. then while noodling around, I noticed that now only one of the LEDs was lighting up. i desolder the diode, both LEDs light up. aha! so now I'm guessing the switch does this: one side LED + 1SS133, middle is either both sides or neither, and the other side 1N34A + 1SS133. the LED side of the switch sounds great now, and the diode side sounds good too.
i'll probably do some more mods later after I play the pedal and get used to the sound and find out what it needs. reading moonwatcher's comments on tantalums, I may replace those in the future and see how it sounds.
also, not all is happy in mod land because there is a strange problem with the pedal now: when i engage the effect, there is a brief 2-3ms pause of complete silence before the distortion comes on (all guitar signal cut off). the problem does not occur when disengaging the effect. anyone got any ideas? |
Edited by - Foulacy on 01/15/2010 13:06:35 |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 01/15/2010 : 13:10:10
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quote:
Originally posted by Foulacy
when i engage the effect, there is a brief 2-3ms pause of complete silence before the distortion comes on (all guitar signal cut off). the problem does not occur when disengaging the effect. anyone got any ideas?
Forsilence, Q2 is off and Q3 is off. This is kind of interesting...
Did you change C6, R9, R11 or C7? |
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Scarymonsta
Bronze Member
United Kingdom
90 Posts |
Posted - 01/15/2010 : 17:43:30
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Interesting silence ... yes...
For some reason the Allums kits provide poly caps to swap around the fet switches - not sure why as this has no effect on sound.
Have you mistakenly swapped in an incorrect value around the fets (C006, C007 - I've not thought about it too much but this may slow the switch on time of the FETS if incorrect).
Chris |
Edited by - Scarymonsta on 01/15/2010 18:32:40 |
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Topic |
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MT-2 Mods
