Sonic Distortion SD-9 Dual Board

[marlin]

Hi!

I heard that the SD-9 came in 2 different versions, one with a single board and one with 2 boards. I was wondering if someone has the schematics of the 2-board layout and have built it. I have an original SD-9 and i love it 
Would like to know if there is much difference also between them soundwise....

My old:

[analogmike]

THe schematics and circuits are the same, the 2 boards allowed seperating things which killed some oscillations at higher gain settings. See my tibe screamer page which links to my SD9 page for more info. Have fun!

[marlin]

Thanks again Mike! You're everywhere! 

[Rafa]

Wait a  minute
I built a SD9 sometime ago and it had only one transistor one Ic an a few caps lets 15.
Is that photo a an original SD9 inside?
Cheers
Rafa

[Barcode80]

rafa, if it was exactly as schematic, then you obvously left out the switching, which accounts for a few of those trannies and caps.

[marlin]

Wait a  minute
I built a SD9 sometime ago and it had only one transistor one Ic an a few caps lets 15.
Is that photo a an original SD9 inside?
Cheers
Rafa

Yea that's the original 

Would be great to see a pic of the dual board, I've never seen it spec'd anywhere either when for sale etc, is it maybe really rare?

[Rafa]

Wait a  minute
I built a SD9 sometime ago and it had only one transistor one Ic an a few caps lets 15.
Is that photo a an original SD9 inside?
Cheers
Rafa


Yea that's the original 

So mine is wrong, I mean its not a SD9 
Cheers
Rafa

[marlin]

Wait a  minute
I built a SD9 sometime ago and it had only one transistor one Ic an a few caps lets 15.
Is that photo a an original SD9 inside?
Cheers
Rafa


Yea that's the original 

So mine is wrong, I mean its not a SD9 
Cheers
Rafa

From what layout did you bulid?

[Rafa]

from the one at General guitar gadgets

[marlin]

from the one at General guitar gadgets

Ok, to bad I'm not competent enough to tell what's left out....

[Barcode80]

okay, ONCE AGAIN if you made a clone, the electronic switching has been left out. 3 or 4 of those trannies in the sd-9 above are used in the electronic switching and buffer sections of the pedal, which are omitted in a diy clone in favor of a 3pdt or dpdt switch. the effect circuit would likely be identical (although check ggg to see if mods were included), just with the electronic switching removed.

[Rafa]

Thanks

[marlin]

Thinking about getting a board from GGG myself just to have a backup to my SD-9 and something to play with and moidfy... pretty sure it sounds the same.