Ibanez AD-9 true bypassed clone

[Blondcorto]

Hello everybody !
I'm new on this forum. I'm here to querry some help and tips !

I'd like to make an Ibanez AD-9 clone for my pedalboard. I really love the sound of this box but to expensive for me... So, diy could be the solution ! This will not be my first diy stompbox.

What I would like to do : to make it true bypassed, on stripboard designed with DIYLC, everything in a Hammond 1590BB enclosure.
I think I can remove lots of parts (of the disabling system) I won't need according to the fact thjat I want it TB.

I've downloaded schematic drawn by Dirk_Hendrik in 2007. See the link below (it's where I found schematic) :
http://experimentalistsanonymous.com/diy/Schematics/Delay%20Echo%20and%20Samplers/Ibanez%20AD9.pdf

My question is what have I to remove to make it TB. I understand that 2SK118 are N-JFET and act like electronic switch (open/close footswitch dependant), is that correct ?
Anyway, I'm not skilled enough to understand exactly what parts are used for the Ibanez disabling system.
I plan to remove everything from C16 to T8, everything between C25 and P2 and everything from LED1 to Footswitch and T12.
What about Dry Output ? I'd like to keep it in my clone. I will keep too buffer input stage and buffer output stage.

Could someone please help me, send me some explanations, give me your opinion ?
Thank you and have a nice day (it's an order, lol) !

[Brisance]

If you want to make pedals, DIY is rarely cheaper than the real thing, just a warning

[Elijah-Baley]

This project could be really interesting! I love stripboard.
But too much complicated for me this schematic. I wish I could help you.

I don't know, maybe I have built just simple pedals, no painted and no labeling, but I found DIY pedals always cheaper than original or similar (EA Tremolo, TS808, MicroAmp...).

[Brisance]

but to help on the topic, I will modify the schematic when I get home from work

[Blondcorto]

Thanks Brisance, any help will be appreciated !

[Blondcorto]

As a start point, here is what I plan to do :
https://dl.dropboxusercontent.com/u/13753911/Ibanez_AD9_schematic_mods_to_TB.pdf
Do you think it is correct ?
Thanks a lot !

[Blondcorto]

No more ideas ?
Thanks

[Brisance]

sorry, didn't get home until very late yesterday, will try again today.

[Blondcorto]

No problem 

[bean]

As a start point, here is what I plan to do :
https://dl.dropboxusercontent.com/u/13753911/Ibanez_AD9_schematic_mods_to_TB.pdf
Do you think it is correct ?
Thanks a lot !

You pretty much got it, but you need R44. You also do not need the two caps you drew in by the output mixer, or the two caps you drew in between C25 and the repeat knob. You don't need the stuff in the question mark area, either.

[Blondcorto]

Thanks a lot, Bean !

I've made a new modified schematic by erasing parts I do not need (well, assuming I've understood your answer lol).
Here the link to see the result :
https://dl.dropboxusercontent.com/u/13753911/Ibanez_AD9_schematic_mods_to_TB2.pdf

What you thought to be caps (drawn in red on my first schem mod) were in fact cuts in circuitry 
My fault, I was not clear enough 

So, if you could take a look at the new version it would be great because I don't understand why I still need R44
Other question about dry output (I'd like to keep this output if possible) => to the ground as you'll see on the new modified schematic.
So two question mark areas : R44 and dry output.

One more time, thanks a lot

[nickbungus]

You seem to be on a very similar path to what I was on with my fOXX phaser clone.

Costing wise, if you already have all the tools then it is cheaper to DIY, otherwise, just buy one if they are available.

Starting from a schematic, I tried all the software tools under the sun but eventually I found DesignSpark to be the easiest.  Its also 100% free.

After drawing up the schematic in all these software packages I was looking for a magical button to press that would turn in into a PCB layout.  Unfortunately, none of them have it.

But with DesignSpark, after I drew up the schematic, I ran up the PCB view and then spent a lot of time, trial and error, laying out the board.  Once I had the layout to the desired size and had no errors I etched a PCB.  Low and behold it worked.