Home › Forums › Vintage EHX › Big Muff Versions!
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April 8, 2009 at 7:00 pm #95450Angle LossParticipantQuote:2n5088 is definitely NPN, I build effects and I use them all the time. All PNP Big Muffs were positive ground and all NPN were negative ground.
Russian trannies are weird, some are marked some are not, i have the numbers of some, i’ll find them and post them.
The green sovtek transistors are about 700hFE, the same as the US RI versaion, 700 is considered high gain. I know the gain because I removed them and measured them.
With the 3 RI’s there are value changes and types of component changes. I’ll PM you the schematics.Hello Ned Flanders (love the name!),
I love the Civil War and Green (especially early thin font) Russian muffs. I’ve owned about a dozen different models and have built a couple myself. I was never satisfied with the results of my home builds. They sounded good, but didn’t exactly sound like my favorite Russians.I was wondering if you could send that info about the Civil War/Green versions and the transistor info to me as well. I have a good sounding greenie right now, but would go nuts if I could build one that sounded the same in a smaller box. It’s like cooking, and I just haven’t quite got the right recipe yet!
Thanks!
April 8, 2009 at 9:42 pm #95462Ned FlandersModeratorSo what do you you want exactly?
You can build a green version in a smaller box, GGG has a PCB that will fit in an MXR size box.. the PCB is about $14.Project files
http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=108&Itemid=26April 8, 2009 at 10:39 pm #95466Angle LossParticipantThanks, I already can build and source parts, what I was asking for was your schematic and transistor info you said you had for Kit Rae (which I quoted). Any of that info would be great. The transistors and some of the caps in mine are unreadable.
Also, since you guys are compiling info, I found that my particular Green has stock 150k pots.
April 8, 2009 at 10:49 pm #95467Ned FlandersModeratorI really don’t have any transistor info other than the hFE of the stock NYC muff and a few russian part numbers which wont help anyways cause you cant get the same transistors the russians use unless you live in russia likely because the numbers don’t make any sense to us english speaking people. A good replacement is the 2n5089, it has a similar hFE to them and sounds about the same.
One sovtek muff had BC249C (I think that’s what it was) transistors in it, you can find them kind easily enough.Most of the schematics I have are the same as ones found online except I’ve redrawn them but I do have a few that aren’t available on line, I can PM them to you.
April 8, 2009 at 10:52 pm #95468Angle LossParticipantCool, you can PM those that you have–I’d really appreciate it. Thanks for getting back to me so fast.
April 11, 2009 at 1:47 pm #95564civilwar_paintjobParticipantDoes anyone know where I can find the Blue/Gray Civil War schematic? I’m trying to get mine repaired, and my guitar repairman said the schematic was necessary for him to make sense of what’s going on in there.
I haven’t been able to find that schematic anywhere online!
Thanks
April 11, 2009 at 11:45 pm #95574April 12, 2009 at 5:04 pm #95583civilwar_paintjobParticipantThank you. I really hope I can get that thing working again. It’s my just about the best fuzz I’ve ever owned, and in my opinion the best of all the Big Muffs.
November 1, 2010 at 8:54 pm #112326frances rhodesMembercould somebody tell me which transistor were used in the civil war muff, please?
i read this thread… not from end to end but i read most of it and everywhere else i looked i couldn’t find the answer.
thanksNovember 3, 2010 at 10:52 pm #112371Ned FlandersModeratorIts not gonna make a difference if you wanna build a clone. Just use 2N5089’s.
If its for research purposes, well I cant help you as I don’t remember.LOL I don’t even know if I ever knew….
Kit will know!
Have you checked his site out? I havent been there in ages but I think he tells you on his site.
November 4, 2010 at 1:28 am #112375frances rhodesMemberQuote:Its not gonna make a difference if you wanna build a clone. Just use 2N5089’s.If its for research purposes, well I cant help you as I don’t remember.LOL I don’t even know if I ever knew….
Kit will know!
Have you checked his site out? I havent been there in ages but I think he tells you on his site.
thanks!
yes i visited this site, they talk about “Russian E-type transistors” but no more precise reference is given, unfortunately.
i was first asking for documentation, but actually i may try to build myself a clone, i’m not sure yet. are the 2N5089s suitable for any NPN version? i read the big muff V6 was the best version built so far, maybe i’ll try this one.November 4, 2010 at 9:23 am #112381Ned FlandersModeratorYeah for NPN and then use 2N5087 for PNP if you wish.
November 4, 2010 at 9:43 am #112382frances rhodesMemberQuote:Yeah for NPN and then use 2N5087 for PNP if you wish.great, thanks a lot! that’s precious information
November 5, 2010 at 1:18 am #112393KitraeMemberSorry guys, but I don’t know the exact Russian part number for those black TO92 transistors. I have seen dozens and dozens of them, and none have any markings other that the painted dots. The metal can TO18 cased tranys they sometimes used were numbered KT3102E, KT23102E, KT9108, and 5102E. KT3102E seem to be the most common. NPN 2n5210 equivalent for those. No idea about equivalents for the others. I emailed back and forth a few times with a guy who used to work in the factory that made the Sovtek pedals for EHX in St. Petersburg and all he could tell me was that they were “E” type and that they were supposed to be similar to the transistors used over here for the USA Big Muffs. I have an exact clone of a Civil War Big Muff from Stomp Under Foot that uses 2N5088s, and I can barely tell the difference between that pedal and my two original Civil War Big Muffs. 2N5088s are probably the best transistors to use for any Big Muff currently.
November 11, 2010 at 7:49 pm #112523ScienceFrictionMemberHey Liberty Belle those links in your first post are not working, did they become passe in light of Kitrae’s Big Muff site? Which is great by the way!
Anyway, I have a V6 Big Muff myself that I just got fixed, definitely a lot of fun. I think Kitrae’s description on his site is pretty good, mine definitely does not work with chords. However, I find it sits nicely between smooth and fuzzy, and is a very nice Muff. The tone control is also very responsive, and the tone bypass is nice too. Unfortunately, like all things I seem to like, there isn’t really many demos of this model. While I do like my V6, is there any other owners out there? Does anyone find there possible improvements for it, or preferred applications?
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