First build in a while but i'm pretty pleased with how it came out (despite not having tools or means for graphics at present).
An Acoustic Simulator in a 1590B With Battery, probably the tightest build i've done but I managed to get it all in snuggly, the wiring is actually a bit neater than the picture shows too (there's method in it... the picture just makes it look like a nest) oh and the LED resistor is just like that 'till I find some heat shrink.
The effect its self is great, if you're looking for an acoustic simulator, or just something to add a bit of flavour to your tone, I can't reccomend it enough (I beleive it turned out that the Biyang pedal company pinched this design as well so it was clearly good enough for a pedal company).
(http://i898.photobucket.com/albums/ac182/Scruffie_Crow/DSC00556.jpg?t=1322624645)
(http://i898.photobucket.com/albums/ac182/Scruffie_Crow/DSC00562.jpg?t=1322625184)
mm where'd you get the board? demos plz? ;D
Quote from: jtn191 on November 30, 2011, 07:40:14 AM
mm where'd you get the board? demos plz? ;D
I had a very small batch made, they're not available.
As for Demos, i'm not set up for them but there's a soundclip in the DIY Files on Marks site - hammer.ampage.org/
Is the layout readily available?
Not sure where he got his board from, but you can etch your own w/ this layout I found on the web: http://www.aronnelson.com/DIYFiles/up/M._Hammer_s_Woody.pdf
Quote from: LaceSensor on November 30, 2011, 09:09:39 AM
Is the layout readily available?
4 Layer, not etchable.
But as bangerang points out, there's quite a few PCB layouts for this available.
Thats awesome! 8)
What a cool pcb layout,must have a bit been tricky sizing it for 1590B
Great build!
Very nice build.
Can someone edumacate me on what an acoustic simulator is?
cheers guys
looking forward to when I have time to build this - put in the archive for now.
Great looking build there dude, would like to hear a clip too.
Quote from: TNblueshawk on November 30, 2011, 02:21:37 PM
Very nice build.
Can someone edumacate me on what an acoustic simulator is?
QuoteThis uses a simple exciter circuit and a bass boost to get a bit of the boom and crispness of an acoustic.
the concept is
something like
would you consider buying a larger batch down the road, scruffie? ;)
Quote from: nzCdog on November 30, 2011, 11:39:43 AM
Thats awesome! 8)
What a cool pcb layout,must have a bit been tricky sizing it for 1590B
Great build!
I think I can actually make it tighter and smaller with more component space, 4 layer boards FTW!
Cheers man :) I really love this pedal and I will say building the PCB was a breeze, knocking the layout together took an evening, a year ago, before I improved my layout skills (not that they're amazing but still, it can be improved).
Quote from: jtn191 on November 30, 2011, 03:06:00 PM
Quote from: TNblueshawk on November 30, 2011, 02:21:37 PM
Very nice build.
Can someone edumacate me on what an acoustic simulator is?
QuoteThis uses a simple exciter circuit and a bass boost to get a bit of the boom and crispness of an acoustic.
the concept is something like
The AC-3 is digital (I think?) It's probably closer to the AC-2 build wise (there is a project for this somewhere) but the build is simpler and many say the sound is better but yes, basically, it emulates an Acoustic Guitar!
In practice obviously it doesn't
completely capture the sound but in a band situation, it'd definitley be great for a bit of rhythm acoustic without a guitar change or for an intro. Can't say how much I enjoy this one.
Quote
would you consider buying a larger batch down the road, scruffie? ;)
If someone will front the money (I honestly can't afford it) and if Mark (Mr Hammer) Agrees, i'd be happy for the layout to be available, as it stands now though, there are only 4 of these boards in existance.
Quote from: LaceSensor on November 30, 2011, 02:28:15 PM
cheers guys
looking forward to when I have time to build this - put in the archive for now.
Definitley give it a shot!
QuoteGreat looking build there dude, would like to hear a clip too.
Thanks :) It's not the best i've done but i'm happy she'll hold up, although if anyone has suggestions for graphics (especially those can be done without etching etc.) i'd love to hear them.
I'll see what I can do regards clips... no promises it'll be the best quality though.
Edit: Oh and if people want some of my layouts (all with onboard pots) there's a thread here - http://www.freestompboxes.org/viewtopic.php?f=13&t=13740
(If you can't tell from that and this thread, I like 1590Bs, Batteries & Onboard Pots ;D )
I did post them all here but they were lost when the forum went down months back.
QuoteI think I can actually make it tighter and smaller with more component space, 4 layer boards FTW!
4 layers! Epicness 8)
Hmmm I am very interested in this now... having played with a boss version once, it is an awesome unit to totally change your sound for a song without changing guitars :)
Quote from: nzCdog on November 30, 2011, 04:05:22 PM
QuoteI think I can actually make it tighter and smaller with more component space, 4 layer boards FTW!
4 layers! Epicness 8)
Hmmm I am very interested in this now... having played with a boss version once, it is an awesome unit to totally change your sound for a song without changing guitars :)
Yeah, 4 layers just make Power or V.Ref & Gnds sooo much easier and allows for a tighter and neater lay out... it does mean the boards are pretty expensive though unless you buy 100 (as this was done with Express PCB which is pricey unless you bulk buy) much like the Bad Stone run I helped organise previously... which I think were around $10 a board, can't think off the top of my head.
This is great for a 1590B but i'd love to see a deluxe model (that's basically my entire pedal board, 1590B versions of things for gigging easyness, then deluxe versions to experiment at home and in the studio) so I wonder if there's a project Bean could produce... after the next 30 or so on the way haha.
Definitley handy, even if you're not going for Acoustic it can add a great 'sparkle' to your sound and stacks well with other effects, it's like a dual use EQ.
Well, learn something every day. Thanks for the info.
Awesome job on the tight squeeze!
-jftl
Cool build thanks for sharing. Definitely an interesting projects to remember for the future.
OK. Here's where I look like a fool for asking this question....
I've never seen a power set up like this before, with the -9V going to a resistor, a cap, and then there is a separate GND. Can someone explain to me what is going on there? I need me some edumacation
Also, Scruff, if you read this. It looks like Hammer's version is for two 9Vs, but you seem to be running from 1. Also, For the three knobs, did you just break up the dual-ganged pot in his original?
I'm interested in this pedal and may work on my own layout, it I can figure out what is going on :)
Ian
Not sure what's going on in this circuit, but in synth-diy stuff the common power supply of choice is -15V, GND and +15V. +5V is commonly included for logic circuitry.
Quote from: irmcdermott on April 14, 2012, 11:52:02 AM
OK. Here's where I look like a fool for asking this question....
I've never seen a power set up like this before, with the -9V going to a resistor, a cap, and then there is a separate GND. Can someone explain to me what is going on there? I need me some edumacation
Also, Scruff, if you read this. It looks like Hammer's version is for two 9Vs, but you seem to be running from 1. Also, For the three knobs, did you just break up the dual-ganged pot in his original?
I'm interested in this pedal and may work on my own layout, it I can figure out what is going on :)
Ian
Bi-Polar split to V.Ref, that's how V.Ref works, instead of 9+ & 9- imagine that V.Ref is 0, 9V is 4.5V & Gnd is -4.5V, get it? Hence, Virtual reference, the chip thinks it's 0V where as really, its 4.5V
And yes the dual gang is broken in to two pots, works better that way.
The resistor drops the voltage a bit and forms a low pass filter with the cap to cut down on power supply noise... and don't try and follow the PCB, it's 4 layer so there's internal connections you can't see.
Quote from: alanp on April 14, 2012, 12:34:51 PM
Not sure what's going on in this circuit, but in synth-diy stuff the common power supply of choice is -15V, GND and +15V. +5V is commonly included for logic circuitry.
Completely different, as mentioned above :)
Quote from: Scruffie on April 14, 2012, 06:40:23 PM
Quote from: irmcdermott on April 14, 2012, 11:52:02 AM
OK. Here's where I look like a fool for asking this question....
I've never seen a power set up like this before, with the -9V going to a resistor, a cap, and then there is a separate GND. Can someone explain to me what is going on there? I need me some edumacation
Also, Scruff, if you read this. It looks like Hammer's version is for two 9Vs, but you seem to be running from 1. Also, For the three knobs, did you just break up the dual-ganged pot in his original?
I'm interested in this pedal and may work on my own layout, it I can figure out what is going on :)
Ian
Bi-Polar split to V.Ref, that's how V.Ref works, instead of 9+ & 9- imagine that V.Ref is 0, 9V is 4.5V & Gnd is -4.5V, get it? Hence, Virtual reference, the chip thinks it's 0V where as really, its 4.5V
And yes the dual gang is broken in to two pots, works better that way.
The resistor drops the voltage a bit and forms a low pass filter with the cap to cut down on power supply noise... and don't try and follow the PCB, it's 4 layer so there's internal connections you can't see.
Quote from: alanp on April 14, 2012, 12:34:51 PM
Not sure what's going on in this circuit, but in synth-diy stuff the common power supply of choice is -15V, GND and +15V. +5V is commonly included for logic circuitry.
Completely different, as mentioned above :)
The dual gang audio pot....how do you wire in the 2 regular pots to replace. Typical pcb one layer would show the 3 lug connection on the board. I've read more than once, this is a good mod and improves the "tweak" ability. Thanks very much.
Quote from: bigrigg on April 17, 2012, 07:50:15 PM
The dual gang audio pot....how do you wire in the 2 regular pots to replace. Typical pcb one layer would show the 3 lug connection on the board. I've read more than once, this is a good mod and improves the "tweak" ability. Thanks very much.
Well look at the schematic, where as it shows two halfs of a dual gang, you just use two single gang pots, simple as that.
Some people like to wire the trimmer as a pot too to help suit different guitars.
I have one spare PCB for this (in fact the only spare likely to ever exist) if any of you guys want it, $18 shipped anywhere.
You can see the layout in the first pic and how it fits with everything, 4-layer express PCB proto, leaded pads, very nice quality, one small mistake on the layout in that the polarity protection diode was sized wrong for thicker 1N400X diodes (I just used a 1N914... better than nout).
Wrong section but seeing as it's one specialist item and all the info's here, figured it'd be okay.
Surprised nobody jumped at this....... I'd be interested, but as I didn't join in on the thread in the beginning (think I wasn't even a member when the thread started) I think if any of the guys that did would want it, they should have it. But if there aren't any other takers...... Please!
Paul
I'm interested what's that in Gbp?
Lace, if you want it, take it man, you were on to this last November.
Paul
cool, thanks
gentlemen and scholars round here