RMC - Wizard Wah (Geoffrey Teese)

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

So maybe now I can post the links to the censored stuff.

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Last edited by analogguru on 08 Sep 2007, 06:44, edited 1 time in total.

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analogguru
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Post by analogguru »

Now let´s go to the

RMC Wizard Wah guts

enjoy,
analogguru

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Ed G.
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Post by Ed G. »

He uses BC239B transistors. I haven't tried those but transistor choice gets little mention when it comes to tweaking wahs. I find they make a big difference.

Doing a search for BC239B and "wah" I found a site not in my native language but you can understand what they're getting at:
I haven't posted enough to post the link, but here's a copy of the text.
Notice how Teese uses different transistors in his different models.

"Waheissa käytettyjä transistoreita mm. : "5117" eli 2N2925 (Thomas Organ), 2N3900A ja 2N2924 (alkuperäisestä CryBaby-patentista), 2N5172 (Vox V846), BC109 (RMC1, Clyde McCoy), BC173 (Clyde McCoy), BC239B (RMC3), 2SC828 (Fulltone Clyde), MPSA18 (Dunlop CryBaby, Vox V847).

Muita suositeltuja vaihtoehtoja: 2N2222, 2N3904, 2N5088/9, BC108B/C, BC550. Transistoreita vaihtaessa oikeaan jalkajärjestykseen on syytä kiinnittää huomiota."

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Post by makkoka »

The site Ed G. mentioned in his post is in my native language (Finnish) and below is the same text in English.

"Some commonly used transistor in Wahs are "5117" or 2N2925 (Thomas Organ), 2N3900A ja 2N2924 (taken from the original CryBaby patent), 2N5172 (Vox V846), BC109 (RMC1, Clyde McCoy), BC173 (Clyde McCoy), BC239B (RMC3), 2SC828 (Fulltone Clyde), MPSA18 (Dunlop CryBaby, Vox V847).

Other recommended options are 2N2222, 2N3904, 2N5088/9, BC108B/C, BC550. Pay attention to the pinout when replacing transistors."

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