Mad Professor - Simble  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
John G
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Post by John G »

Hi,
I offered this to Bugg but got no reply.
Its only a rough drawing of a unit I had for a brief period some years ago.
Some weird stuff going on...........but it is a Zen derivative. Gooped to blazes................
The person sanding the IC had an off day, I could still make out the IC code if it was held just at the right angle to the light.
Not trying to rain on Buggs parade here, just trying to help.
John
img094.jpg

cbriere
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Post by cbriere »

thanks for this mockup.
i think the VOICE link is needed.
From the picture, the trace to R21 seems cut but could it be connected on the other side of the pcb?

bugg
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Post by bugg »

Hey cool, that's pretty close to what I have as well. A couple values difference, but overall similar.

Those dead-end components were pretty cool, can't say I've seen that before. :lol:


BTW I didn't get a message (or email) from you, where did you send it?

cbriere wrote:From the picture, the trace to R21 seems cut but could it be connected on the other side of the pcb?
It was not. There were two RC networks that didn't go anywhere, coincidentally these areas were not covered in goop.

John G
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Post by John G »

Bugg,
I mailed you from this board.....maybe I should of PMd you.
Any who you have it now, and yes!!!!! no doubt it has mistakes, I look forward to your completed schemo.
Attached is a shootout of the the pedal I had being compared to the OCD.
Cheers
John



gght
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Post by gght »

Please include the dead end components for posterity. :)

gght
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Post by gght »

Any updates??

digitalzombie
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Post by digitalzombie »

I have a V2.1 2014 on hand. It was my dad's and I inherited it a few months ago. Haven't spent much time playing it to be honest and put it on the "for sale" pile, but maybe I'll give it some more attention.

The board is designed in a way that the mounted DC jack sits flush in the enclosure, so I can't take the board out unless I desolder it. I don't want to bother doing that to take a look if you guys won't find that useful. Especially if I go that far and it's gooped.

bugg
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Post by bugg »

It's gooped, and traced, don't tear yours up. :D

I'll post the schematic shortly, it's verified now.

FeVeR2112
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Post by FeVeR2112 »

Would love to see the schema and see how it compares to the other dumble-like pedals

gght
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Post by gght »

Yeah. I’m waiting on schemo too. Gonna buy Buggs PCB and think I have almost all parts at Tayda ready to buy!

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