Dunlop CAE MC404 Wah

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

Has any one traced or have the schematic for the Dunlop (CAE Custom Audio Electronics) MC404 Wah?

I've had a good look in the files but cant find any thing.

Cheers Geoff

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roseblood11
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Post by roseblood11 »

gutshot:
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mc404.jpg

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Troll_face
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Post by Troll_face »

Isn't this thread in the wrong board?

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Mrdorbe
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Post by Mrdorbe »

i can see this is an old threed... did anyone trace this circuit?
i have to fix one and i cant find the Q3 transistor type or name.
thank you :)

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drummer4gc
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Post by drummer4gc »

Bumping an old thread again...

Does anyone have one that could read the code off of Q3? A friend plugged in the wrong adapter and fried it :/

For the previous poster, you can get the circuit running again by jumpering 9v+ to the non-grounded side of c13....I'd just like to replace q3 if possible to ensure good power filtering, just need to know what the hell to replace it with!



**Oh yeah, and could a mod move this to the correct board? Thanks!!

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drummer4gc
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Post by drummer4gc »

Fixed! Q3 is a PNP - I used a 2n5087. E to 9v jack, C to the circuit, B to the diode->resistor->ground.

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akeiser
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Post by akeiser »

Hi Guys,
I'm new here and I'm not sure if i posted at correct board.
I would like to mod my MC404 wah to volume pedal with using MC401 circuit in the wah. is there anyone did similar mod before?
mind to share more about their modification? thank you very much.

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fretzburner
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Post by fretzburner »

Hello, where to buy replacement switch for the fasel selector SW3? Mine will not lock anymore and always on red .
Thanks

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pollyshero
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Post by pollyshero »

Mouser Part # 611-PN22LENA03QE
Manufacturer (CTK) Part # PN22LENA03QE

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pollyshero
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Post by pollyshero »

Also - FYI: Q3 is an MMBT5087 (SOT 23 package). It's equivalent in TO92 is the 2N5087.

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