Colorsound- One Knob Fuzz

analogguru · Post by **analogguru** » 01 Apr 2009, 00:01

Do you mean how to build a clone of this ?:

Thats very easy, as you can see here:

analogguru

borislavgajic · Post by **borislavgajic** » 02 Apr 2009, 10:30

pictures are nice nice nice!!! thanks..........

borislavgajic · Post by **borislavgajic** » 02 Apr 2009, 11:07

this is what I find

http://www.musictoyz.com/img200708/color01.jpg

how to make this?

boris

jrod · Post by **jrod** » 02 Apr 2009, 13:55

What are the pictures of that AG posted? Colorsound One-Knob Fuzz?

analogguru · Post by **analogguru** » 02 Apr 2009, 21:15

jrod wrote:What are the pictures of that AG posted? Colorsound One-Knob Fuzz?

The first picture is from a Colorsound (One-Knob) Fuzz Box Reissue from 1996:

The other three pictures are from a clone-pcb of that unit - built by me.

analogguru

RnFR · Post by **RnFR** » 02 Apr 2009, 21:37

borislavgajic wrote:this is what I find

http://www.musictoyz.com/img200708/color01.jpg

how to make this?

boris

which version is that??

Fuzzed · Post by **Fuzzed** » 02 Apr 2009, 23:24

analogguru wrote:Do you mean how to build a clone of this ?:

analogguru

THAT LOOKS ADORABLE!

Electric Warrior · Post by **Electric Warrior** » 04 Apr 2009, 01:51

some time ago I made a vero layout based on AG's pics and Stu's schematic. hope it works, haven't tried it yet.

: oneknobfuzzvero.png (22.78 KiB) Viewed 4606 times

patafix · Post by **patafix** » 08 Apr 2009, 10:21

The versions posted (reissue and clone) look different.

The reissue version has 3 transistors, the clone has two... so what's the 3 transisor for ? Added gain stage? buffer ? Mill Bypass ?

patafix · Post by **patafix** » 08 Apr 2009, 12:44

So this circuit has a fuzz face topology... with the gain knob omitted (maxed out all the time) and slightly tweaked values for the components.

Electric Warrior · Post by **Electric Warrior** » 08 Apr 2009, 13:07

yes. here's the fuzzcentral schematic: http://fuzzcentral.ssguitar.com/schemat ... obfuzz.gif

patafix · Post by **patafix** » 08 Apr 2009, 19:10

But I still don't know why the colorsound reissue has 3 transistors, diodes etc...

Solidhex · Post by **Solidhex** » 08 Apr 2009, 19:14

Yo

The reissue has a clean blend feature with an internal trimpot. That's where the third transistor comes in... http://www.macaris.co.uk/product_full.a ... 27&catID=5

--Brad

RnFR · Post by **RnFR** » 08 Apr 2009, 19:55

i was under the impression that this was a vintage release, hence the categorization. is it true that this design was only released within the last decade?

Electric Warrior · Post by **Electric Warrior** » 08 Apr 2009, 23:17

apparently it's the same circuit that was in the rotosound fuzz: http://stompboxes.co.uk/forum/viewtopic ... 6&start=10

sonicvi · Post by **sonicvi** » 09 Apr 2009, 07:53

Which was also used in the Jennings Growler fuzz/wah.
http://filters.muziq.be/model/jennings/growler

Bernardduur · Post by **Bernardduur** » 09 Apr 2009, 08:05

Solidhex wrote:Yo

The reissue has a clean blend feature with an internal trimpot. That's where the third transistor comes in... http://www.macaris.co.uk/product_full.a ... 27&catID=5

--Brad

Is it really a clean blend feature?
'a little preset wheel that allows you to balance the effected sound against your true bypassed sound'

I could also interpret that as a volume control; then maybe the 22k lin pot does something else (like gain or pre-volume or something like that).

Great pedal! I once build one in a Colorsound Fuzz Wah pedal of which the fuzz was removed from.

analogguru · Post by **analogguru** » 09 Apr 2009, 18:59

Electric Warrior wrote:apparently it's the same circuit that was in the rotosound fuzz: http://stompboxes.co.uk/forum/viewtopic ... 6&start=10

No, it is NOT the same, it is similar....
one big difference is the collector resistor of 4k7 at the second transistor in the Jennings pedal(s) instead of 2k2 in the colorsound pedal.

sonicvi wrote:Which was also used in the Jennings Growler fuzz/wah.
http://filters.muziq.be/model/jennings/growler

The Jennings Fuzz-circuit was also used in the Cyclone.
At least in the cyclone the 220n output cap is loaded with 100k (instead of 470k used in the colorsound pedal).

analogguru

Electric Warrior · Post by **Electric Warrior** » 09 Apr 2009, 21:34

analogguru wrote:
Electric Warrior wrote:apparently it's the same circuit that was in the rotosound fuzz: http://stompboxes.co.uk/forum/viewtopic ... 6&start=10
No, it is NOT the same, it is similar....
one big difference is the collector resistor of 4k7 at the second transistor in the Jennings pedal(s) instead of 2k2 in the colorsound pedal.

thanks for clearing that up!

Mr. G. · Post by **Mr. G.** » 17 Apr 2009, 15:47

Anybody tried anything like 2N5089/5088 in this pedal?

I ask because I only have some BC108's, and no BC109's at the moment.

Any other transistors that might sound good in this circuit?

Colorsound- One Knob Fuzz [schematic]