Castledine Electronics - The Wizard

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Re: Castledine Electronics - The Wizard

Postby ThiagoFaraday » 24 Apr 2017, 20:37

Also I am trying to draw a schematic of this circuit, the resistor that is hidden is a 4k7, the biggest electrolytic capacitor is 100uf. But the greatest difficulty will be knowing the value of ceramic capacitors.

The beginning of it is basically a rangemaster treble booster with npn.

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Re: Castledine Electronics - The Wizard

Postby toneman » 25 Apr 2017, 04:32

The English Channel by RunOffGroove has 5 J201 JFETS (??)

http://www.runoffgroove.com/englishchannel.html

Fuzzy GERM clipping + JFET OverDrive (??)

interesting combination.... :thumbsup
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Re: Castledine Electronics - The Wizard

Postby andregarcia57 » 25 Apr 2017, 14:44

Black Sabbtah rules
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Re: Castledine Electronics - The Wizard

Postby ThiagoFaraday » 25 Apr 2017, 23:04

Some capacitor values and some doubts
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Re: Castledine Electronics - The Wizard

Postby Manfred » 26 Apr 2017, 20:25

I made a board clone derived from the shots and found the schematic by tracing.
I added two guessed values in the schematic.
Four capacitor values unreadable.

WizardLayout.JPG


Wizard.JPG


Here the SprintLayout-file packed in an Zip-file.
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Re: Castledine Electronics - The Wizard

Postby rs » 26 Apr 2017, 21:32

The germanium transistor is CV7351 not CV7371. I've traced it from that same photos a couple of years ago, but i think i got to know somehow the values of those capacitors. IF, i can find the schematic that i traced back then i will post it.
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Re: Castledine Electronics - The Wizard

Postby fuzzbunny » 27 Apr 2017, 07:57

The JFET section looks similar to the AMZ Booster 2.
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Re: Castledine Electronics - The Wizard

Postby Manfred » 27 Apr 2017, 10:58

rs wrote:The germanium transistor is CV7351 not CV7371. I've traced it from that same photos a couple of years ago, but i think i got to know somehow the values of those capacitors. IF, i can find the schematic that i traced back then i will post it.


Sorry, my fault it is a typo.
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Re: Castledine Electronics - The Wizard

Postby Cub » 28 Apr 2017, 07:38

Great work Manfred! :thumbsup
rs, it would be great if you could find your old trace for those last few missing caps. If not, then perhaps similar pedals could offer some clues.

Catalinbread Sabbra Cadabra
http://freestompboxes.org/viewtopic.php?f=7&t=25043&start=20#p249151

Laney Super Group Emulator
http://effectslayouts.blogspot.nl/2015/03/laney-super-group-emulator.html

There are likely to be more, the Paranoid and Sabbath from MASF may very well hold some answers as well. Just as the Musician Sound Design Paranoid.
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Re: Castledine Electronics - The Wizard

Postby Manfred » 28 Apr 2017, 14:34

Hi Cub

rs, it would be great if you could find your old trace for those last few missing caps. If not, then perhaps similar pedals could offer some clues.


You have misunderstood me, I have no old trace, I found the schematic by tracing the board layout.
I will find more guessed values by calculation and circuit simulation.

I cannot build the real circuit for trial and error, because I absent for the next view weeks.
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Re: Castledine Electronics - The Wizard

Postby Cub » 28 Apr 2017, 15:06

Manfred wrote:I have no old trace,

I know, that was for our forum brother rs. :)
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Re: Castledine Electronics - The Wizard

Postby Manfred » 29 Apr 2017, 15:14

I redrew the schematic and filled in further guessed capacitor values,
which are marked by red borders.
I rearranged the tone control parts, so the structur of it becomes better recognizable.
It is a simplified Marshall tone stack, the bass pot is omitted the mid pot is shorted out.

WizTS.jpg


WizTS_Plot.jpg


Wiz.JPG


WizardLayout.JPG


Wiz.zip
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