Emma - PisdiYAUwot?

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
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roseblood11
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Post by roseblood11 »

You should waste some time to read the thread, Ma'am!

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Saruman_
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Post by Saruman_ »

See Ma'am in your mirror, Mr.Witty! :horsey:

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meffcio
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Post by meffcio »

Any news on the case?

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Chrismettal
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Post by Chrismettal »

Well, I know it has been several years, but this is how I think this one works. Schematic attached. Hopefully this rectifies my old ways.

Schematic is not yet verified. Just finished degooping and initial reverse engineering. Currently creating a PCB fitting my system in my effects repository here: https://gitlab.com/Chrismettal/pedaldev.
PCB version is "PCB rev. 1.07 | December 4th, 2009"

Seems very similar to the Reeza, same 4069 and all, though with a tone stack that looks pretty weird to me.
Also the 4V5 rail looks to be created weirdly, using the actual current draw of U1 and Q1 to drop the voltage through a 4K7 instead of a voltage divider.

Degooping only took about an hour. Actually recorded the whole process through the microscope for a timelapse. :blackeye

Love the simplicity of this device. Like the Reeza, very little in the way of active components.

Will update once verified.
Attachments
Designators.png
Front.jpg
Gooped.jpg
Layers.png
PisdiYAUwot-Schematic.pdf
(53.38 KiB) Downloaded 511 times

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Manfred
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Post by Manfred »

Thanks, great work! :thumbsup

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