ac-2 Acoustic Simulator

[addicted2noise]

Hi can someone help me to build this pedal?I´ve built the pcb layer with the nabo´s layout but i ´m getting crazy with the components?anyone have a list of what i need to build it succesfully?

thankx in advance

[MartyMart]

http://pages.infinit.net/cbriere/_sgg/f10000.htm

Scroll down for the AC-2 schem including all parts labelled

Marty.

[addicted2noise]

yeah it's true but I'm a completely nerd in electronics and i don't have too much idea of what exactly this components are...

[Mark Hammer]

Then I would suggest not building it for a while, perhaps until you have a half-dozen builds under your belt.  The risks of producing something that contributes more noise than definition are too great for novices.  You may be better off buying a, gulp, Behringer unit and swapping the TL064s for TL074s.

[addicted2noise]

well I was breaking my head looking for the components,and i show here to help someone and else to give help for someone who will see there's something missing or wrong.Thank You.

Resistors:

R01->  10K
R02->  10K
R03->  10K
R04->   1M
R05->  10K
R06->
R07-> 220
R08-> 5.6K
R09-> 180K
R10->     
R11->
R12->       
R13->   
R14-> 5.6K   
R15->  12K 
R16->  39K 
R17->   
R18->   
R19->   
R20->   15K
R21-> 68K   
R22->   10K
R23-> 120K   
R24->   
R25->  82K 
R26->  8.2K 
R27->  47K
R28->
R29->  2.2K   
R30->   
R31->  47K   
R32->  47K   
R33->  47K
R34->  47K   
R35->   
R36->   
R37->  2.7K
R38->   
R35->  100K   
R36->  120K 
R37->   
R38->   27K   
R39->   82K
R40->   6.8K   
R41->  22K         
R42->   150K
R43->  5.1K 
R44->  39K   
R45->   6.8K
R46->   6.8K
R47->  3.3K 
R48->  10K
R49->   
R50->  680   
R51->   
R52->  100   
R53->  1.5K   
R54-> 
R55->  10K       


-------

Electrolytic Capacitors

C38 ->100uf
c36 -> 10uf
c39 -> 22uf

---------

Capacitors

C1-> 0.1uf
c2-> 1uf
c11 -> 0.1uf
c27 ->0.018uf.
c28 -> 0.018uf
c35 -> 0.047uf
c9-> 820pf
c31->0.047uf
c30->0.047uf
c3 ->0.0047uf
c4-> 0.0022uf
c6-> 0.0022uf
c26->0.0039uf
c7->  820pf
c10->0.01uf
c18-> 0.0047uf
c5-> 200pf
c17-> 0.0047uf
c13-> 0.0033uf
c20-> 1uf
c14-> 1uf
c12-> 0.0047uf
c37->1uf
c15->68pf
c21-> 0.015uf
c25-> 0.0022uf
c34-> 0.056uf
c33-> 0.056uf
c37-> 1uf


-------------

DIODES

D1->9.1V

----------

TRANSISTORS

j1-> 2n7000(I'm not really sure)
q1-> BC456


----------

INTEGRATED CIRCUITS

ic1-> tl074
ic2-> tl074


Please fell free to correct this or suggest types or brands of this componets.

[RaceDriver205]

Looks fine, but what about the pCB? how do you intend to get one made?

[addicted2noise]

Looks fine, but what about the PCB? how do you intend to get one made?

i have it just made about two months ago....

[RaceDriver205]

Awesome, buy the parts and your set to go! As a recommendation, the mid control was not on the original boss, and I think it upsets the acoustic simulation. I left the mid pot out to remove this.

[addicted2noise]

Awesome, buy the parts and your set to go! As a recommendation, the mid control was not on the original boss, and I think it upsets the acoustic simulation. I left the mid pot out to remove this.

this is the problem i don't know what components buy,there so many types and brands around here......do u recommend not to put the mid control?i don't understand well  ,I'm Spanish 

Thank u

[Kornell]

Then I would suggest not building it for a while, perhaps until you have a half-dozen builds under your belt.  The risks of producing something that contributes more noise than definition are too great for novices.  You may be better off buying a, gulp, Behringer unit and swapping the TL064s for TL074s.

I totally agree.

In spanish: "Te recomiendo que no hagas esto como primer proyecto porque tienes muuuuuchas posibilidades de que no salga bien. Tómatelo con calma y haz primero un booster o una distorsión sencilla. Comprende y aprende los conceptos básicos y de esta forma conseguiras dos cosas: no frustrarte con los resultados y más importante disfrutar del proceso. Lo mejor del viaje es el camino."

In english: " Don't build this now if it's your firt project. You've got lots of chances to not succeed. Build first a booster or a simple distortion. Learn and understand the basics so then you'll achieve to succeed and more important enjoy the process."

[Ben N]

+1.  But if you are truly addicted to noise, the hiss of an AC-2 should be right up your alley 

Ben

[RaceDriver205]

I'm Spanish   

Ah well, were none of us perfect. Just kidding

You should buy 'little' resistors, the 1/4W sort. The electrolytic capacitors should say 16V or higher (16V is best). For the capacitors, 1nF (0.001uF) or higher means its a greencap/mylar type. Less than that, its a ceramic.
For the 2N7000, use a BS170 instead, but remember to flip it around when you put it in.
Is this everything?

do u recommend not to put the mid control?

Thats right.

[zencafe]

Has somebody done a clone of the original version? The one with the cap switcher... I've been looking at these 2, the moded version, and the original's schematics and figure out where could I add it.

Greetings

Z.