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Ce2 stereo mod

Started by Kipper4, September 17, 2014, 12:43:41 PM

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Kipper4

Is it possible to mod the ce2 chorus to a stereo chorus?
Thanks
Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

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Seljer

If "stereo" means "100% dry and 100% wet on seperate outputs" then yes. Just do the 'vibrato' mod, by breaking the connection to resistor that mixes in the dry signal in the second opamp, then think up some magic with switching jacks that'll automatically reroute things depending on how you've plugged things in (this is probably tough if you want true bypass.)

Kipper4

#2
I was thinking of a second Inverted output similar to the stereo mod used on tonepads small clone
thanks

edit
seen here

http://www.tonepad.com/getFileInfo.asp?id=97
Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

Seljer

#3
I don't see why you couldn't get away with using that exact PCB from the stereo small clone. There are practically identical well buffered points from where you can take both the clean and wet signals. Use the "Vb" instead of the 4.5V thats there on the small clone. The output mixer seems to be generally the same topology, just change the values so that the levels and de-emphasis match.

Mark Hammer

Simon is asking the right question: which version of "stereo" did you mean?

Kipper4

Does it not matter then that the CE2 dry signal is inverted  and the small clone dry signal is Non Inverting or would I make the second (stereo) output Non inverting the same as the small clone (Tone pad heladito 02)

Heres some links

CE2
http://www.tonepad.com/getFileInfo.asp?id=101


small clone
http://www.tonepad.com/getFileInfo.asp?id=97

thanks


Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

slacker

#6
It doesn't matter, the phase of the dry signal on both outputs on the small clone is the same, they're both inverted, so in phase with each other. On the CE2 they would both be non-inverted, so both still in phase with each other, so no practical difference. You still have one inverted and one non-inverted version of the wet signal getting mixed with the dry so again the same end result.

Kipper4

Brilliant Thanks Ian
with ref to Ce2
I intend to take the dry (A) from  the node at the output of IC1a and R21
              and the wet  (D) from the node between R20/R22
I'll let you know how it goes
Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

Kipper4

#8
Edit,nevermind
Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

Kipper4

Works a treat thanks guys.
Ma throats as dry as an overcooked kipper.


Smoke me a Kipper. I'll be back for breakfast.

Grey Paper.
http://www.aronnelson.com/DIYFiles/up/

petrucci38

Hello, Does the stereo small clone PCB run with CE2 tonepad?

Thanks and regards!