So this all started as a crazy idea to combine a Carl Martin PlexiTone and AC Tone into one enclosure. Took some time but I finally found this Hammond that fit the bill. Got a buddy of mine on another forum to etch the AC board. Not much to it really, just your standard 2n1 pedal, but with a lot more switches, knobs, and wires!
I also added a 3PDT toggle to the back panel that switches the order of the two pedals in case I ever want to mess around with stacking them. The Plexi is on top (white LED's), and the AC on bottom (blue LED's). Sorry but no gut pics, as I'm usually a stickler for neat wiring and this does not meet my standards by any means :D I'll go back at some point and straighten it all up and post pics then. Enjoy!
(http://i70.photobucket.com/albums/i85/EatMyDust46/P1010293.jpg)
Thats insane ;D
Good work mate!
What Hammond enclosure is that out of curiosity? Looks a good size for a multi pedal.
Looks great, lets see some gut shots :D
Very nice indeed!
Josh
Thanks guys. Here's a link to the Hammond, it's a 15 degree slope enclosure, aluminum top slope and back, steel base.
http://www.hammondmfg.com/dwg16Steel.htm
no gutshot?
I'll post one at some point. I explained why in my originial post. :D
Quote from: cjkbug on July 08, 2011, 01:19:17 PM
no gutshot?
Without one its just a fancy box with knobs... just kiddin ;D
Very impressive!
First off badaaaass!
Second off whoa whoa whoa. Back up. I want an AC tone clone! Is it just some different stuff on the plexitone board or... I would gladly pay for an AC board! Deetails!?
Ooh that box looks like fun! Even though you say its a standard 2-in-1 it looks like soo much more. Definitely wanna see the guts shots!
Quote from: chip46 on July 08, 2011, 02:20:21 PM
I'll post one at some point. I explained why in my originial post. :D
must have missed that. my boneyard was messy in the guts department as well.
Quote from: TheCobbenator on July 09, 2011, 06:09:32 AM
First off badaaaass!
Second off whoa whoa whoa. Back up. I want an AC tone clone! Is it just some different stuff on the plexitone board or... I would gladly pay for an AC board! Deetails!?
There are schematics and layouts online if you know where to look. The usual places will have them. I'm about to get grab some lunch with the girlfriend or I'd post it. I had a friend on another forum etch the board for me.
It's very very similar layout and schematic to the Plexi though, in fact you might be able to just use the Boneyard board. The biggest difference is the use of trannies for the clipping instead of LED's, but the drain and source are tied together so it's still acting like a diode.
Thanks for the replies guys, I promise I'll get gut shots up at some point, but I can't take the pedal apart to redo any of the wires since I've got a slew of gigs coming up. I might try and paint it sometime next week though.
thats just sick
Thanks!
What about this? Look good to you guys?
http://www.aronnelson.com/gallery/main.php/v/ibodog/od/ac-tone_vero_verified_v1_1.gif.html
How would I leave off the boost pot?
I have that layout on my computer. It's correct, but they did omit the 2nd gain pot. Idk if that's something you want or not.
Here's a schem:
(http://i70.photobucket.com/albums/i85/EatMyDust46/acetonerev3zg5-1.jpg)
http://i70.photobucket.com/albums/i85/EatMyDust46/acetonerev3zg5-1.jpg
And a layout:
(http://i70.photobucket.com/albums/i85/EatMyDust46/ACE_Tone_PartsLayout-2.jpg)
http://i70.photobucket.com/albums/i85/EatMyDust46/ACE_Tone_PartsLayout-2.jpg
^That's the layout I had my friend etch from. I had the original pcb artwork for it somewhere but I must've lost it.
Quote from: chip46 on July 12, 2011, 09:57:09 PM
I had the original pcb artwork for it somewhere but I must've lost it.
You've lost it?!?! Maybe on purpose? :)
Well I certainly didn't delete it, must've grown a mind of it's own and buried itself deep within my hard drive. I'll ask my friend if he still has it.
What a tease. Well tell your buddy I'd gladly reimburse him for the trouble the next time he makes a batch. At least 1. My bandmate may want one as well.
Anyway, I'm fine with the 1 gain pot. In fact, I'd be fine omitting the 2nd gain pot and boost. Can anyone tell me what I could jumper to bypass the whole dpdt / boost pot? I'm just getting into the whole perf and stripboard thing and would love a little stepstool from some more advanced than myself.
Also the layout I posted says it needs a charge pump at ~17v. Could I pull this off with a road rage?
Easy to build that with a Boneyard board, just a few parts substitutions.
Ignore the transformer stuff, thats taken care of by the charge pump on the Boneyard.
Yep. If I had to do it over again I would just buy 2 boneyard boards. I didnt think to get two at the time and then they sold out. My friend was already making me some other stuff so I just asked him to do the AC tone too.
As for the boost control, I think on that layout I posted there is a note saying you can jumper two points to omit it. You could find this spot on the boneyard board and do the same thing.
I may buy a few more boneyard boards and socket some stuff to mess around with the values. Maybe Brian could look at it too and then sell the boneyard as a dual board so that you could make whichever one you wanted. That would be cool. The value changes are minimal, would just need to add the AC BOM to the existing PDF.
Quote from: TheCobbenator on July 13, 2011, 08:23:21 AM
What a tease. Well tell your buddy I'd gladly reimburse him for the trouble the next time he makes a batch. At least 1. My bandmate may want one as well.
Anyway, I'm fine with the 1 gain pot. In fact, I'd be fine omitting the 2nd gain pot and boost. Can anyone tell me what I could jumper to bypass the whole dpdt / boost pot? I'm just getting into the whole perf and stripboard thing and would love a little stepstool from some more advanced than myself.
Also the layout I posted says it needs a charge pump at ~17v. Could I pull this off with a road rage?
I'd be glad to etch you a few when I get the layout if you still need them.
It looks like you could skip the boost pot/switch by putting a jumper between j18 and g18. Might have to put a resistor there if the signal drops. The pot is 100k so I'd try between a 100k resistor and jumper (being zero resistance) and set it too your taste. Make sense? :)
You of course can get 17 volts from a road rage but I'm not sure how to supply the board with the -17 volts it says it needs.
Maybe you can run the -9v output to another road rage board and since you apply -9v the +18volts would come out -18v. I've never tried that though, does anyone know if that would work?
Not sure, but if you use the boneyard board it's got a charge pump already there. All the ac tone layouts I've seen had the charge pump built in as well.
Finally something I can contribute. . . PCB for the Plexi/ AC Tone goes with the layout previously posted enjoy
[attachment deleted by admin]
Awesome, thanks for that. I know exactly where I'm saving it this time so I know I won't lose it :D
I'd really like to build this AC-Tone as well. Could someone kindly re-post the PCB-Layout? And explain that "[attachment deleted by admin]" message?
I'd be most thankful.
Best regards, Lars