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DeFrag
Moderator
USA
3409 Posts |
 Posted - 09/05/2008 : 03:03:05
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From over at the Orange Forum, in a nutshell...
An idea for a stompbox that allows you to choose between 2 different volume settings. With 2 switches & 2 pots, the ability to choose 3 (or 4) different volume settings.
Practical: dime your pedals & amp, then volume down where you like it. Kind of the same thing a volume pedal does but operationally switching between discrete volume settings in an instant.
Painfully easy to make like this one:
Here's an example:
http://cgi.ebay.co.uk/Napalm-True-Bypass-Volume-Cut_W0QQitemZ300250074289QQcmdZViewItem?hash=item300250074289&_trkparms=72%3A12%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14
You could even add a normally-open (switched) 2.1mm 9VDC power-adapter jack & a battery clip to run an LED.. or two jacks from which to power other pedals in your chain. (Mouser #163-4302-EX) Add a low-noise amp circuit or an LPB clone & you'll have a handy Boost/Cut pedal.
Turn it into something like a Moollon boutique pedal:
Hell, you can just go nuts like customized 4ms Triwave PicoGenerator pedals:
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Edited by - DeFrag on 09/05/2008 06:26:01 |
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starr36
Platinum Member
Canada
1172 Posts |
Posted - 09/05/2008 : 03:55:24
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| I want that picogenerator. Figuring out then remembering how to use it, just might help delay the onset of alzheimer's. |
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DeFrag
Moderator
USA
3409 Posts |
Posted - 09/05/2008 : 03:59:35
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Check their site: http://www.4mspedals.com/index.php, they have tons of pics, mostly custom pedals. I can't imagine trying to play guitar through them.. hit a chord, twiddle, hit another chord..
Here's a schematic for Paul Marossy's Solo-Pro over at DIY Guitarist:
http://www.diyguitarist.com/PDF_Files/SoloPro.pdf
1. What size audio-pot should be used.. a 500K like above or 50K as below?
2. Should we really wire in a 100pF cap for treble bypass? Some guy says that 100pF is too big.
Bob? Laurie? I'm-a-callin' you out!  |
Edited by - DeFrag on 09/05/2008 06:27:10 |
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DeFrag
Moderator
USA
3409 Posts |
Posted - 09/07/2008 : 03:26:07
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1. What size audio-pot should be used.. a 500K like above or 50K as below?
2. Should we really wire in a 100pF cap for treble bypass? Some guy says that 100pF is too big.
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 09/07/2008 : 04:26:28
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Sorry - missed this the first time!
For passive single-coil pickups on guitar (eg strat), I'd use 500k. 100pF is probably too high. I'd normally use 10pF but that's probably too low... maybe 33pF or 47pF. Or none at all...
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Edited by - Laurie on 09/07/2008 04:28:36 |
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DeFrag
Moderator
USA
3409 Posts |
Posted - 09/07/2008 : 07:28:02
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Tks Laurie.
So for passive single-coil picksup 500k.
What about passive humbuckers or even active pickups?
I'd like to make this volume box so it supports all 3. |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 09/07/2008 : 07:33:33
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To support all 3, I'd go with 500k and see how it sounds. I'd also buy a 250k pot to try as well and see if that sounds better (it's all about how the guitar pickups respond to the load).
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Dirk
Platinum Member
Netherlands
1309 Posts |
Posted - 09/07/2008 : 11:11:16
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Why not just roll off your guitar volume a little to clean up the sound?
Unless you like adding extra gizmo's  |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 09/07/2008 : 17:30:58
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Hmmm... and no boost.
Haven't tried this, but it should work - I saw an article somewhere that if you cut the clipping diodes out of a DS-1 it makes a cheap boost pedal? Probably cheaper to buy an old DS-1 than to buy the parts to make this passive box... |
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Dirk
Platinum Member
Netherlands
1309 Posts |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 09/09/2008 : 06:40:44
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quote:
Originally posted by Dirk
Stewart MacDonald sells a similar thingy, called the black ice overdrive. Basically 2 diodes in a box.
http://www.stewmac.com/shop/Electronics,_pickups/Components:_Black_Ice_overdrive.html
Hi Dirk
Some time back, I posted a thread about the secret insides on this device.
It's basically 2 back to back Shottky barrier Diodes.
I'll see if I can locate the thread a bit later.
Regards Dr. Bob
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 09/09/2008 : 06:46:40
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quote:
Originally posted by DeFrag
Tks Laurie.
So for passive single-coil picksup 500k.
What about passive humbuckers or even active pickups?
I'd like to make this volume box so it supports all 3.
Hi DeFrag
With Active, pickups, I would probably go for lower value pots, in the 10K-50K range.
Active pickups have very low impedance outputs, unlike passive pickups.
But it is very much dependent on the design of the active pickups electronics.
Maybe make the value of the cap switchable, via a 3 way toggle or 5 way rotary switch, small value caps are cheap.
Just my 2 cents worth.
regards Dr. Bob |
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Dirk
Platinum Member
Netherlands
1309 Posts |
Posted - 09/09/2008 : 17:34:37
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quote:
Originally posted by Dr. Bob
Hi Dirk
Some time back, I posted a thread about the secret insides on this device.
It's basically 2 back to back Shottky barrier Diodes.
I'll see if I can locate the thread a bit later.
Yes, I remember.
Not worth the 27 dollar for two diodes you could solder in your guitar yourself if you ask me. |
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Dr. Bob
Moderator
Australia
6593 Posts |
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TKO Ken
Silver Member
USA
162 Posts |
Posted - 09/14/2008 : 17:20:03
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quote:
[i]
Hell, you can just go nuts like customized 4ms Triwave PicoGenerator pedals:
HOLY CRAP
Which button launches the Space Shuttle |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 09/14/2008 : 18:28:06
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quote:
Originally posted by TKO Ken
quote:
[i]
Hell, you can just go nuts like customized 4ms Triwave PicoGenerator pedals:
HOLY CRAP
Which button launches the Space Shuttle
Interestingly, I can't see a footswitch on the entire monster... must be "always on"... nevermind, it won't affect the tone too much |
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Topic |
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Volume Box
