Malekko Plus Ultra 213 Guts

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

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Some guts!
I wanna make it
I wanna make it wit chu
(again and again and again)

French... sorry ;)

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KindaFuzzy
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Post by KindaFuzzy »

I've got one in the mail, shouldn't be too long till she's traced.

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devastator
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Post by devastator »

easy , a big muff with a phaser filter with no LFO (a pot connected between V+ and ground) . But no need to see the guts to know that the video clips are enough.

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Visualdistortion
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Post by Visualdistortion »

KindaFuzzy wrote:I've got one in the mail, shouldn't be too long till she's traced.
Hope that you'll do it soon! I can't wait to build this pedal!
I wanna make it
I wanna make it wit chu
(again and again and again)

French... sorry ;)

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devastator
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Post by devastator »

I even say that's a Ross phaser (3n3 caps ) . And I though Malekko was original in designs :roll:

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~arph
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Post by ~arph »

Nice guts tho 8)
In the quiet words of the virgin Mary: "Come again?"

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KindaFuzzy
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Post by KindaFuzzy »

Little late but finally finished tracing. Is indeed a tweaked muff into a ross phaser with a pot to the reference voltage instead of an LFO. Super cool pedal, only thing is it's non-true bypass stock and sucks tone worse than an old crybaby wah. Piece of cake fix though, there's 3pdt switches in there standard and one pole isn't used so here's a pic of how to fix it too.

muff section:
Image

Phaser section (all the 1.8k resistors are 1k, sorry):
Image

Mixer circuit:
Image

Super messy trace pic:
Image

True bypass fix:
Image

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Visualdistortion
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Post by Visualdistortion »

Incredible works! Thanks a lot!
I wanna make it
I wanna make it wit chu
(again and again and again)

French... sorry ;)

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benobo
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Post by benobo »

nice ! :applause:

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