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  • June 4, 2009 at 5:28 pm in reply to: Post Your Big Muff(s) #97335
    devnulljp
    Participant

    Just dug out all my EHX gear for a family shot: here are my muffs and variants

    v2 3003 Ram’s head (w/ FS36999 (2N5133))
    v3 3003 (w/BC239C)
    v4 IC version tone bypass EH-3003 board
    v6 3034 (w/S2N5088)
    Recent Big Muff Pi w/ Tone Wicker
    1973 Little Muff Pi (w/ FS36999 (2N5133))
    Little Big Muff IC version
    Muff fuzz IC version

    [img]”http://i440.photobucket.com/albums/qq123/devnulljp/Fuzz/Big Muffs/bigmuffs_0016.jpg”[/img]
    [img]”http://i440.photobucket.com/albums/qq123/devnulljp/Fuzz/Big Muffs/muffs-family8-2.jpg”[/img]

    June 3, 2009 at 4:36 am in reply to: Cure Noisy Vintage Big Muff? #97285
    devnulljp
    Participant

    Anyone ever tried using shielded wire in there to kill noise?
    Earth the shield at one end with the core as the conductor.
    Wouldn’t the shield then function to shield the core from interference == less noisy?
    Do it on the input at least…maybe I’ll try it and report back.

    June 2, 2009 at 7:45 pm in reply to: Bad Stone wiring help? #97258
    devnulljp
    Participant
    Quote:
    Here’s a link to reverse-engineered Bad Stone:
    http://topopiccione.atspace.com/PJ05EHBadStone.html

    I suggest you simply learn how to read a schematic. It will help you figure out where each wire goes. It’s not hard. Here’s a link on how to get started:
    http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=31&Itemid=27

    Thanks for the links — I definitely do need to learn to read a schematic (although the people who wrote those pdfs on GGG need to learn to write: they’re unintelligible in places). That reverse engineer page looks cool too, but it’s for a different version to mine.
    Is Electronic Projects for Musicians by Craig Anderton any good for learning this stuff?

    June 1, 2009 at 4:19 pm in reply to: Civil war color #97228
    devnulljp
    Participant

    There wasa yellow one too sovtek_bigmuffpi-yellow_001.jpg
    Have a look on discofreq

    June 1, 2009 at 2:30 pm in reply to: Civil war color #97226
    devnulljp
    Participant

    There are also green ones, like this early beauty (not mine unfortunately):
    dsc00649u.jpg

    June 1, 2009 at 3:00 am in reply to: “Clock Noise” on Deluxe Memory Man #97220
    devnulljp
    Participant
    Quote:
    The most common cause of clock noise is misalignment, and 9 times out of 10 doing a complete trimpot alignment using the proper lab equipment and procedure will eliminate it. Some models, due to PC board layout and lead dress, have a low level of this noise that cannot be completely eliminated. It is usually above 5 KHz or so in frequency, and there is very little if any guitar signal at or above this frequency, so the use of a filter or equalizer that cuts frequencies above 4KHz or so can eliminate it without degrading guitar tone.

    Guitar pedal design engineering, repairs, and custom mods:
    http://howard.davis2.home.att.net/

    Thanks Howard — I’m curious what that entails.Running a signal though it into an oscilloscope … then what ? What would you be looking for?

    May 31, 2009 at 11:40 pm in reply to: Bad Stone wiring help? #97217
    devnulljp
    Participant
    Quote:
    The trimmers are stock. I’ll have to see if I can put a diagram together for the wiring.

    Thanks for all your help — got it working…sort of. Any advice for those trimmers?
    There’s a 500k JFET BIAS control trimmer, ad two 100k trimmers — one for depth and the other for mix (?)
    I’m tweaking by ear, but is there a range of readings I should be looking for to set them with a DMM?

    Setting the Rate pot in the last third of its range gives a quite unpleasant metallic warble; it’s better in the lower part of the range but the phase doesn’t sound symmetrical…the phase goes wump–WUMP…wump–WUMP…like it’s got a limp :-)
    The profile sounds like a drumlin rather than Mt. Fuji — does that make sense?

    This:
    800pxdrumlinplsvg.th.png
    Not this:
    7550300421b644fa.th.jpg

    Is that normal or is something knackered?

    EDIT: The clips I found online (of a slightly different version…same enclosure but different board) have a very symmetrical phase effect.
    Would a knackered op-amp cause the phase to be lopsided?

    May 31, 2009 at 9:59 pm in reply to: Which EHX Chorus to go with and what is the difference ? #97214
    devnulljp
    Participant
    Quote:
    The Small Clone is probably the best chorus you can get. I’ve played a few boss chorus pedals, but nothing compares to the Small Clone.

    Vintage Small Clone is at least equal to the CE-1 if you ask me, but I agree it wipes the floor with all the Boss CE-x produced afterwards. You have to hear the DC-2 in stereo though. (I’ve got an old DC-2 and also one of the first run of John Fromel’s Lush/Seraph clones, which is better again).
    Chorus got horribly overused in the 80s and it still makes me cringe a bit…but of the ones listed, I don’t think you can go wrong with a Small Clone if you’re after classic chorus sounds.

    May 31, 2009 at 7:53 pm in reply to: Which EHX Chorus to go with and what is the difference ? #97208
    devnulljp
    Participant

    I’m sure that’s just a typo, but one thing to note: the Small Stone is a phaser (and my fave), the Small Clone is the chorus.
    I lived through the 80s when everything got drowned in chorus so can’t really stand it, but of the ones you mentioned I don’t think you can go wrong with the Small Clone…unless you really need stereo (in which case nothing beats the old Boss DC-2 in stereo: depth but no wobble).

    DC2.jpg

    May 31, 2009 at 3:51 pm in reply to: Octave Fuzz? #97204
    devnulljp
    Participant

    EDIT: Deleted. Disgruntled with that company.

    May 31, 2009 at 3:17 pm in reply to: Octave Fuzz? #97202
    devnulljp
    Participant

    EDIT: Deleted. Disgruntled with that company.

    May 31, 2009 at 8:11 am in reply to: Russian Small Stone R.I.P? #97198
    devnulljp
    Participant

    Is it a green or a black one?
    This flickr set might help
    Even if it doesn’t, try setting up a flickr (or photobucket or imageshack) account so you can link hi-res images to your posts.
    Good luck.

    May 31, 2009 at 12:29 am in reply to: Help Needed – Hiss Debugger??? #97194
    devnulljp
    Participant
    Quote:
    My current pedals (in order) are EHX Double Muff – EHX Micro Q-Tron, – Behringer Blues Overdrive – Behringer Chromatic Tuner – NYC Big Muff Pi – Danelectro Fab Chorus – EHX Nano Chorus — EHX/Sovtek Small Stone — EHX Holy Stain — Behringer Digital Delay,

    I find most of those daisy chain things to be noisy. The Voodoo Labs PP2 is a good power supply, as each pedal is isolated from the others. Behringer, as you say, are not known for their quality products, and a lot of EHX pedals can be a bit noisy. I hate having a tuner in-line too — seems superfluous. Shove an true bypass A/B box in there as a tuner mute.

    Have you tried running everything off batteries and see if that helps any?
    Take each of the pedals out of the chain one by one and see if you can find the worst culprit that way.
    Another common source of noise is the cables you’re using — from your guitar to the pedals, the patch cables between pedals (those cheapie moulded plastic ones are terrible -get some George L or Planet Waves or something, painful as it is to spend $50-100 on cables), and to your amp.
    You have a lot of dirt pedals — double muff, overdriver, and BMP — all three ofthose on at the same time will sound like FSSSSSSSSSSSSSSSSSSSSSSSSSHHHHHHHHHHHHHHHHHHH!
    Most people normally stack dirt pedals in the order of least to most gain (so put th eblues pedal first, then double muff (that thing is noisy IMO — it’s a pair of muff fuzzes stacked, and they’re noisy on their own), then BMP.
    I’d bet that Sovtek Small Stone is pretty noisy on its own.

    Doesn’t your amp have a spring reverb? Maybe you can lose the Holy Stain and use the amp’s reverb?
    It doesn’t have a top boost or treble booster on it does it? I have a few Rangemaster-type things and they can be pretty finicky with other pedals, especially wahs (and your Q-tron kinda counts) and fuzzes.

    May 30, 2009 at 11:52 pm in reply to: Octave Fuzz? #97191
    devnulljp
    Participant

    EDIT: Deleted. Disgruntled with that company.

    May 30, 2009 at 9:39 pm in reply to: Bad Stone wiring help? #97190
    devnulljp
    Participant

    Got it, thanks!
    Lifted out one dead electrolytic to be replaced as soon as I can get anew one, quick solder and it’s (kinda) working now.

    EDIT: Quite a volume drop on engaging the pedal. Is that normal (like the old Small Stone)? I modded my old Small Stone — is there a similar mod for this one?

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