Castledine Electronics - The Wizard  [traced]

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gilmour_pugliese
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Post by gilmour_pugliese »

Hi guys, surfing on Youtube I've seen this great pedal:



According to the website
http://www.wah-wah.co.uk/wizard.html

The Wizard is "A new distortion pedal, inspired by Tony Iommi's guitar sound on the early Black Sabbath albums. It is well known that he used a modified Rangemaster to drive his amps, so the same principle was used for The Wizard. The first gain stage is essentially a Rangemaster, using a germanium transistor, but tweaked for a full range boost. That drives a distortion circuit which has been designed to give something of the tone and feel of a Laney Supergroup amp. Obviously, there is no substitute for a full stack at volume, but The Wizard has a similar distortion character and responds well to picking dynamics".


The boost stage is pretty simple, but the drive section is a bit hard to decode... Could be a tube-to-JFET conversion from a Supergroup amp?
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Castledine Electronics - The Wizard guts
Castledine Electronics - The Wizard guts

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Cub
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Post by Cub »

Stuart should have used a larger enclosure so there would be enough space for an indicator LED.
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gilmour_pugliese
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Post by gilmour_pugliese »

Cub wrote:Stuart should have used a larger enclosure so there would be enough space for an indicator LED.
Probably a LED on a dirt pedal is not so Rock 'n' Roll :popcorn:

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Post by Nocentelli »

Just guessing here, but the five black trannies for the distortion section could be two muamp stages and a buffer on the output like some other "amp emulators" by catalinbread etc - I'm only going off the physical arrangment of first two transistors, and the fact the upper transistor in the first two muamp pairs appears to have the drain directly connected to +9v. I've just been messing with the C'bread CB30 vox box, so it's on my mind.
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Post by Bill_Mountain »

I love big boxes with no LED's.

I'm a bassist but I want to try this out.

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Post by Max Cohen »

+1 to bigass enclosures. Still this one is not big enough to fit my cock in to, and all we know this is what expensive pedals should be made for
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Post by Dirk_Hendrik »

:shock:
you manage to get your weener in through a quarter inch jackhole!? And tell us, is the input or output jack better. I's say the input since it's a stereo jack and provides more friction.

Ever wondered about rear end insertions? That's where "big ass" pedal really....


ah never mind...
Sorry. Plain out of planes.

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Post by atreidesheir »

:whappen: he prefers the dc jack.
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Max Cohen
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Post by Max Cohen »

I'm deeply sorry, I don't speak fuck-right-off-ish dialect of assholian
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Post by phibes »

Max, do you wear ESD protection?
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Post by Max Cohen »

phibes wrote:Max, do you wear ESD protection?
Do they do anti ESD bags for macrodix?
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Post by geiristudio »

Common guys, we need this traced!

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Post by beedotman »

Anybody got better shots? I found only this one.
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pedal050_zpsedef799f.jpg

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Post by fakcior »

Couple of new gutshots:

Image

Image

Image

Image

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Post by cdeschenes »

This is a cool sounding pedal from the videos. I was looking at the photos in Photoshop and trying to clean them up and blow them up. Here is what I have found so far.

There is a CV7351 NPN Ge for the Rangemaster portion of the circuit.
5 X FET J201's.
Gain - A100k
Trebble - B100k
Volume - A100k
2 X 47uF Elec.

Some of the resistor values I can make out are consistent with a NPN Rangemaster. I wonder if the 5 JFETs are like a Brown Sound or a Marshall 18watt.
Looking for more photos of it now. Hope this can be traced at some point.

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Post by mmolteratx »

Anyone tried just emailing Stu? I know he was really straight up with me about the circuits in the few pedals I've bought from him, and he's a really friendly guy. From what I can see, one pair of J201s looks to be set up as a common-source stage with a DC couple source follower, so I'd guess that it's a Rangemaster-ish thing into a JFET version of the Supergroup preamp (probably just the treble channel, or a mash up of the treble/bass channels since it's only got one gain control) with a buffered output and a passive high cut tacked in there somewhere, likely right before the master based on the location on the board.

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Post by Cub »

Morning, lads! :D

I found an album on Photobocket with all sort of snapshots of this pedal, including the bottom of the PCB.
https://s77.photobucket.com/user/fantast ... t=3&page=1

It's slightly newer and different from the ones that were posted in this thread so far.

enjoy :thumbsup
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Post by Cub »

Too late to edit my previous post, but I had a go at it myself. It's my first attempt, so it's far from perfect. (please try and don't laugh too hard :blackeye) The things I'm not certain about are in red.
There's a resistor between the two big orange drops that doesn't appear to be connected on one end. Also, there's a trace going from the cap on its right to... ? I can't see, but I suspect the electrolytic cap.

The two images I used as a source are also attached for an unobstructed view. Perhaps the more experienced members can tell me where I went wrong or even have a go at it themselves.
Attachments
wiz-pcb-traces.jpg
wiz-pcb-bottom.jpg
wiz-pcb-top.jpg
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Post by Jan1966 »

I'm interested.

The second photo down will be perfect to copy using Sprint.

http://www.ebay.co.uk/itm/2N1308-CV7351 ... 1069189439

others will probably work. Just need the cap values.

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