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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  Wich Acoustic Simulator project? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Wich Acoustic Simulator project?  (Read 23586 times)
served
Posts: 348


Wich Acoustic Simulator project?
« on: July 11, 2009, 04:39:03 AM »

Hi!

I want to build acoustic simulator effect pedal. But i cant find anything else than Boss AC pedals. Is there any other pedals that are worth building?
And schematics should be available, otherwise i cant build it.

Thanks!
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edd29
Posts: 114


CAMBRIDGE UK


Re: Wich Acoustic Simulator project?
« Reply #1 on: July 11, 2009, 05:50:29 AM »

here's the one from Boss pedal modified by Nabo. http://img11.imageshack.us/i/myac2.pdf/
                                                                        http://img210.imageshack.us/img210/7946/ac2partssized.gif
                                                                        http://img79.imageshack.us/img79/1309/ac2pcb.gif
here's another one From MARK HAMMER             http://img232.imageshack.us/i/woodyschematic.gif/
                                                                         http://img27.imageshack.us/i/woodylayout.jpg/
« Last Edit: July 11, 2009, 07:49:12 AM by edd29 » Logged
served
Posts: 348


Re: Wich Acoustic Simulator project?
« Reply #2 on: July 11, 2009, 10:35:11 AM »

So still. Boss AC is the pedal I should build?
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edd29
Posts: 114


CAMBRIDGE UK


Re: Wich Acoustic Simulator project?
« Reply #3 on: July 12, 2009, 12:09:28 PM »

So still. Boss AC is the pedal I should build?

yes, this is ac boss but already modified remove some parts like switches but the main effect is still here.
  http://img11.imageshack.us/i/myac2.pdf/
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served
Posts: 348


Re: Wich Acoustic Simulator project?
« Reply #4 on: July 12, 2009, 11:57:38 PM »

ok ill give it a try! Thanks!
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gigimarga
Posts: 1429


Re: Wich Acoustic Simulator project?
« Reply #5 on: July 13, 2009, 12:21:21 AM »

Hello,

I am a big fan of acoustic guitar simulators, so, I had along the time the next ones:

1. Behringer AM100 - without true bypass, plastic enclosure and some hiss, but cheap...so if you play as me only at home it's the a very good solution: a few dollars and no headache with DIY-ing

2. Boss AC-2 - without true bypass, well made, but not so cheap...as almost any Boss pedal it sucks the tone (on my setup the combination Boss-->EHX it's a disaster)

3. Nabo's clone of AC-2 - you can made it true bypass, no buffers, better controls than Boss (even in my build a pot has only a little effect), enough components to solder, but,  what's worst, the PCB is huge...I sold it because I can't find a proper enclosure for it (I think that it must to be something like 3 Boss stompboxes in a row)

4. Mark Hammer's Woody - true bypass, half components than Nabo's AC-2 clone (I've built it in 2 hours or less...), very good sounding, the controls are very effective (don't use a dual 10K pot...use 2 different 10K pots for top and bottom)...the only little problem is that it needs 2 batteries or a bipolar power supply (I've read that is a version with a single battery, but I couldn't find it).

So, after my taste, the winner is Mark Hammer's Woody (thx a lot Mark again)... icon_wink
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served
Posts: 348


Re: Wich Acoustic Simulator project?
« Reply #6 on: August 26, 2009, 09:33:59 AM »

Well im going to build that Nabo version.
But now i cant print it in correct size.
Real pain.

And what about this C37 (1uf cap) Close to R38 R41 R44. It doesnt have a place.. What does it mean?
And where is the switch knob that alternates the sound? Shoult it be added, or its removed for purpose?
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Mark Hammer
Posts: 21967


WWW
Re: Wich Acoustic Simulator project?
« Reply #7 on: August 26, 2009, 09:43:39 AM »

I was listening to the Woody sample again this morning, and I was pleasantly surprised by how much better (and convincing) it sounded in comparison to my Behringer unit. And the Behringer is an AC-2 clone.

I can't post it from here, but I'll try to post the single-battery adaptation that Oliver Alex in Germany graciously contributed.  haven't tried it out myself, but he indicated that the changes he made improved bandwidth and noise as well as making it wallwart-friendly.
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served
Posts: 348


Re: Wich Acoustic Simulator project?
« Reply #8 on: August 26, 2009, 04:16:47 PM »

oh damn, that would be awsome.
If you say its actually more worth it, then ill go for it also. Not much to lose.
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Mark Hammer
Posts: 21967


WWW
Re: Wich Acoustic Simulator project?
« Reply #9 on: August 27, 2009, 05:38:44 AM »

http://i414.photobucket.com/albums/pp228/Mark_Hammer/Woody.png
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zeta55
Posts: 327


Krister Ístman


WWW
Re: Wich Acoustic Simulator project?
« Reply #10 on: August 27, 2009, 08:53:04 AM »


Is there a layout for this schematic?

/Krister
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Mark Hammer
Posts: 21967


WWW
Re: Wich Acoustic Simulator project?
« Reply #11 on: August 27, 2009, 09:33:14 AM »

Perhaps, but I am not aware of it.
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zeta55
Posts: 327


Krister Ístman


WWW
Re: Wich Acoustic Simulator project?
« Reply #12 on: August 27, 2009, 09:55:45 AM »

Perhaps, but I am not aware of it.

Well, i kinda like to try it, maybe i should do a layout for it if it's not allready done icon_neutral

/Krister
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Mark Hammer
Posts: 21967


WWW
Re: Wich Acoustic Simulator project?
« Reply #13 on: August 27, 2009, 12:20:48 PM »

I think some folks would appreciate that.  Generous offer on your part. icon_smile
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served
Posts: 348


Re: Wich Acoustic Simulator project?
« Reply #14 on: August 27, 2009, 12:43:00 PM »

But how will it sound with humbuckers?
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Mark Hammer
Posts: 21967


WWW
Re: Wich Acoustic Simulator project?
« Reply #15 on: August 27, 2009, 01:56:40 PM »

Depends on the humbuckers.  For most, not especially wonderful, though some humbuckers have a clear sound with extended range.  If they're overwound humbuckers, don't expect anything that sounds particularly acoustic-like.  You can sometimes make a silk purse from a sow's ear, but it's hard to make a space shuttle from one. icon_wink
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served
Posts: 348


Re: Wich Acoustic Simulator project?
« Reply #16 on: August 27, 2009, 03:40:42 PM »

that nailed it.
I hope ill remember it.

But now, ill try to make a layout or zeta55 is already finishing?
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zeta55
Posts: 327


Krister Ístman


WWW
Re: Wich Acoustic Simulator project?
« Reply #17 on: August 27, 2009, 03:49:06 PM »

that nailed it.
I hope ill remember it.

But now, ill try to make a layout or zeta55 is already finishing?

It's on the way. I'll post later in this thread.

/Krister
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zeta55
Posts: 327


Krister Ístman


WWW
Re: Wich Acoustic Simulator project?
« Reply #18 on: August 28, 2009, 04:50:15 AM »

Care to check the schematic for errors?
I got the layout almost finished, aiming to fit it in a 1590B sized box.



/Krister
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Mark Hammer
Posts: 21967


WWW
Re: Wich Acoustic Simulator project?
« Reply #19 on: August 28, 2009, 07:47:09 AM »

Looks fine to me.
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