The great "I'd like to see the guts of" thread

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.

Re: The great "I'd like to see the guts of" thread

Postby mikevande » 13 Oct 2013, 20:11

I'd like to see the guts of an Ethos Overdrive. Wouldn't mind a schematic, either...
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Re: The great "I'd like to see the guts of" thread

Postby Big_Mike » 04 Nov 2013, 12:57

typo... R13 000 should be R3 000
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Re: The great "I'd like to see the guts of" thread

Postby prehistoric » 26 Nov 2013, 20:06

in a nutshell, here are the major differences in a bonamassa.

pre buffer switchable. same basic buffer as the gcb 95, but you can also take it out with the switch. ( this is the SMD stuff under the board.)

out buffer, not switchable, simple bjt buff stage, with a 100k to ground for level reduction.

as mentioned, the pot runs approx 45k to 100k as set from factory. they can do this because the whole thing is voiced low with a .022 sweep cap. the out buffer retains highs so there is no shortage of high end with this pedal. in fact, there is a 330pf cap (IIRC) to ground across the pot outer lugs to tame the shrillies.

other than that, pretty standard CB fare. but these small changes make big differences, as we have seen with any wah mod.
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Re: The great "I'd like to see the guts of" thread

Postby prehistoric » 26 Nov 2013, 20:15

just noticed the JB wah pictured above did not have the cap to ground across the pot. the one i had was made mid to late 2011 i think, it had this:
Image

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Re: The great "I'd like to see the guts of" thread

Postby mirosol » 29 Dec 2013, 16:56

Anyone seen the guts of BBE Windowpane?
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Re: The great "I'd like to see the guts of" thread

Postby TondovanRest » 17 Apr 2014, 14:23

Or the guts of a Wampler Thirty something/Ace Thirty?
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Re: The great "I'd like to see the guts of" thread

Postby jrod » 17 Apr 2014, 15:50

TondovanRest wrote:Or the guts of a Wampler Thirty something/Ace Thirty?


viewtopic.php?f=7&t=23523
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Re: The great "I'd like to see the guts of" thread

Postby TondovanRest » 17 Apr 2014, 16:03

jrod wrote:
TondovanRest wrote:Or the guts of a Wampler Thirty something/Ace Thirty?


viewtopic.php?f=7&t=23523


Yeah, but it does not show the other side of its guts...
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Re: The great "I'd like to see the guts of" thread

Postby Tall Steve » 25 Apr 2014, 18:39

I'd like to see the guts of the new MF Delay. Been lusting after one after hearing a few of the demos on YouTube. Pedal sounded great, but the release date was pushed back. They're supposed to be available now. Then, I caught this post on the Moog forum:

Unfortunately, we have been unable to begin production of the MF Delay as quickly as planned. We have received multiple shipments of faulty BBDs over the course of the last 6 months. Due to these complications, we have made the decision to upgrade the design to accomodate NOS Panasonic BBD chips. These chips sound wonderful and have a higher dynamic range, which translates beautifully in the MF Delay. Accommodating the larger size of the NOS Panasonic BBD is now complete, and we are looking forward begin building the MF Delay at our Asheville factory in April.

-Your Friends at Moog


And this:

It has increased our development and manufacturing costs, but we are honoring current pricing for dealer and customer preorders at this time.

-Your Friends at Moog


With four BBDs and 700ms of delay, based on what I've gathered from the forums, my noob guess is that it was v3205-based. Now that it's got Panasonics, it seems like now would be the time to get one before the price increases. I'd like to see if they're indeed in the units currently being shipped. I'd like to know what you think of the pedal, too.

TL;DR--Moog Minifooger Delay guts. Confirm presence of Panasonic BBDs. Pedal thoughts/comments appreciated.
Free your mind...and your ass will follow. - George Clinton
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Re: The great "I'd like to see the guts of" thread

Postby Govmnt_Lacky » 25 Apr 2014, 19:49

LOVETONE WOBULATOR!!!!!!!!!!!!!!

'Nuff said! :secret:
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Re: The great "I'd like to see the guts of" thread

Postby bladefrenzy » 19 May 2014, 19:15

I really need a gut shot or schematic for a Diamond Cornerstone drive!!!!
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Re: The great "I'd like to see the guts of" thread

Postby TondovanRest » 15 Sep 2014, 12:39

I would like to see the Clarksdale from Wampler, would love a trace too. Tubescreamer with TMB ok, but I am curious to how he reduced the fizz on the higher gains...
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Re: The great "I'd like to see the guts of" thread

Postby indyguitarist » 24 Sep 2014, 16:29

TondovanRest wrote:I would like to see the Clarksdale from Wampler, would love a trace too. Tubescreamer with TMB ok, but I am curious to how he reduced the fizz on the higher gains...


TS circuit into eq gyrator stages.
switch changes diodes from sym to assym.
fizziness: opamp choice, layout control (believe it or not, it DOES make a difference...), and little bigger cap in first gain stage.

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Re: The great "I'd like to see the guts of" thread

Postby PJ03029174 » 24 Sep 2014, 22:08

I've had a good look for the guts of an original Dan Armstrong Orange Squeezer, all i can find is copycats!
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Re: The great "I'd like to see the guts of" thread

Postby armdnrdy1 » 12 Jan 2015, 16:59

Since the price of MN3005 has went through the roof....and the authenticity is questionable,
I've been working on a schematic for the (4) MN3008 version of the Maxon AD-900.
There is still a good quantity of this model BBD available. Four MN3008s can be sourced to accommodate this build at 1/4 of the cost of one MN3005.

Working with the AD900 drawing (soulsonic) and various board shots of the 3008 version, I have come up with a good rough draft of the circuit.

If anyone has the (4) MN3008 version...I could use a few pictures of the trace side to verify.
I could also use pictures showing the cap values (ceramic and film) or a list of the values according to part number.

I plan to work up a build after I've verified the above info.
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Re: The great "I'd like to see the guts of" thread

Postby Dirk_Hendrik » 12 Jan 2015, 19:24

IMG_0541.jpg
IMG_0531.jpg
board -Red.gif
board silk.gif


That's all I have without searching.
You do not have the required permissions to view the files attached to this post.
Sorry. Plain out of planes.

http://www.dirk-hendrik.com

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Re: The great "I'd like to see the guts of" thread

Postby lolbou » 12 Jan 2015, 19:57

Dirk_Hendrik wrote:That's all I have without searching.
Fair enough, man! :thumbsup
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.
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Re: The great "I'd like to see the guts of" thread

Postby armdnrdy1 » 13 Jan 2015, 16:10

Dirk....I can't thank you enough!

I was actually going to PM you to see if you had any shot of this model!

I'll post the schematic and project when verified.
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Re: The great "I'd like to see the guts of" thread

Postby Mig Buff » 17 Jan 2015, 22:58

I glean a lot of info from all the generous folks at FSB, but have yet to contribute a thing. I have a handful of pedals, none of them are all that exciting, let alone rare. Nonetheless, if there is anyone that would like some gut shots of anything, I am happy to take them apart and take the best pictures I can. Here's what is currently in the vault...

Boss
TU-2 Tuner
DS-1 Distorion
SD-1 Overdrive
FZ-3 Fuzz
FZ-5 Fuzz
PH-2 Phaser
MT-2 Metal Zone
CH-1 Chorus
BF-2 Flanger
DS-2 Turbo Distortion
LS-2 Line Selector
GE-7 Equalizer
BD-2 Blues Driver
TR-2 Tremolo
CS--3 Sustainer
RV-5 Reverb
DD-7 Delay
OS-2 Overdrive/Distortion
OC-2 Octave

MXR
Phase-90
Phase-90 Script
Uni-Vibe
Micro Chorus
Micro Flanger
Dyna Compu
Classic Distortion
Custom Modified O.D.
Micro Amp
Doubleshot Distortion
Fullbore Metal
Blue Box
10-Band EQ

EHX
Nano Big Muff
New York Big Muff
Black Russian Big Muff
Little Big Muff
POG 2
LPB-1
Electric Mistress
Small Stone
Russian Small Stone
Small Clone
Poly Chorus (Big Box)
Pulsar
Holy Grainl
Octave Multiplexer (Big Box)
Worm (Big Box)
Knockout

Other
BBE Green Screamer
BBE Free Fuzz
BBE Sonic Stomp
BBE Boosta Grande
ProCo RAT
Xotic X-Blender
Dunlop RotoVibe
Digitech Whammy
Line 6 M5
Line 6 DM4
Line 6 MM4
Line 6 DL4
Way Huge Swollen Pickle
Ibanez PT9 Phaser
Ibanez LF7 Lo-Fi
Zvex Fuzz Factory
TC Electronic Ditto Looper
DOD FX25B Envelope Filter
Keeley 2 Knob Compressor
Dunlop Crybaby
Dunlop Crybaby 535Q
Dunlop Crybaby from Hell
Fulltone Ultimate Octave

Let me know if there is anything of interest. I have several destroyed duplicates of these from my early attempts at modding, so some are already in pieces and easy to photograph.

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Re: The great "I'd like to see the guts of" thread

Postby armdnrdy1 » 23 Jan 2015, 13:43

Well...I had great luck with the last request for info on the MN3008 version of the AD-900. (Thanks Dirk)

So I thought I'd give it another go with something that I've been looking for a few years.

Does anyone have a trace side image of an ADA Final Phase?

I've periodically searched the net for years..and have come up with two grainy, blurry, useless images.
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