Dan Electrode

Ranbat · February 17, 2011, 10:30:10 PM

This is pretty cool for those of us that like that dying battery sound on our pedals. I'm gonna have to pick one of these up just to have around. The link has sound samples.

http://www.danelectrode.com/hear.html

Hemisaurus · February 17, 2011, 10:47:54 PM

DIY Alert

If anyone has an extra wall wart and access to RadioShack. You can make a variable supply out of any wall wart you have, all you need is the 7805, the 1K resistor and the 5K pot (10uF capacitor is nice, the red LED is for show), most warts already have the large capacitor in them, 5V is about as low as you'd ever want to go on a 9V pedal. NB you won't get 24V out, you will get from 5V -> whatever the value of the wart originally was (9V or 12V probably)

http://www.radioshack.com/product/index.jsp?productId=2062599

VOLVO))) · February 17, 2011, 11:16:58 PM

I want to put a voltage sag pot on my Tone wicker muff... might sound rad. Easy mod, eh?

Ayek · February 17, 2011, 11:30:50 PM

Here's an easier one:

http://www.beavisaudio.com/projects/DBS/

The schematic Hemi posted would be especially good if you're using a cheap, unregulated power supply due to the fact that the output voltage will fluctuate depending on the current flow unless it's regulated.

Hemisaurus · February 18, 2011, 09:32:34 AM

Ooh Ayek gave me a sick thought. A light sensitive power supply, one that sags as the lights get brighter, or vice versa. Just a thought.

Schematics shamelessly ripped from elsewhere:

VOLVO))) · February 18, 2011, 12:40:51 PM

I've seen those done before, I really like the idea of optically controlled effects. Hover your foot for a more full sound...

black_out · February 18, 2011, 11:23:21 PM

Quote from: Ayek on February 17, 2011, 11:30:50 PM
Here's an easier one:

http://www.beavisaudio.com/projects/DBS/

The schematic Hemi posted would be especially good if you're using a cheap, unregulated power supply due to the fact that the output voltage will fluctuate depending on the current flow unless it's regulated.

I'm gonna grab the parts to build this at Radio Shack tomorrow. Priced it out @ about $10 for the two dc jacks, the enclosure, and the pot.

Ayek · February 19, 2011, 06:49:13 AM

When I eventually get around to building a Big Muff clone I was thinking about chucking one of those rascals in for good measure.

Baltar · February 19, 2011, 02:06:58 PM

Thank you for posting this!

peyotepeddler · February 19, 2011, 10:26:44 PM

looks pretty cool, i've seen quite a few newer fuzz pedals that have voltage control, seems the lower the voltage the more gated and velcro/splatty the fuzz becomes

eyeprod · February 20, 2011, 06:08:43 PM

^^ exactly. I've used that circuit with the 10k pot and it's perfect for adding some tonal variation to a big muff. On mine, when turned up to full power it sometimes starts self oscillating. It's a cool effect to have handy when I'm kneeling down and playing with delay... Crank the voltage up and I get a cool holwing tone that's almost like a theremin. I'm not sure what causes it, but suspect the extra voltage (10k pot=10v rather than 9v of a battery). I sometimes wonder if adding a 12k or so pot would push it more over the edge.

peyotepeddler · February 20, 2011, 10:38:53 PM

Quote from: eyeprod on February 20, 2011, 06:08:43 PM
^^ exactly. I've used that circuit with the 10k pot and it's perfect for adding some tonal variation to a big muff. On mine, when turned up to full power it sometimes starts self oscillating. It's a cool effect to have handy when I'm kneeling down and playing with delay... Crank the voltage up and I get a cool holwing tone that's almost like a theremin. I'm not sure what causes it, but suspect the extra voltage (10k pot=10v rather than 9v of a battery). I sometimes wonder if adding a 12k or so pot would push it more over the edge.

mmmmm theremin, reminds me, i really need to grab a ebow one day

Hemisaurus · February 20, 2011, 10:52:04 PM

Quote from: eyeprod on February 20, 2011, 06:08:43 PM
^^ exactly. I've used that circuit with the 10k pot and it's perfect for adding some tonal variation to a big muff. On mine, when turned up to full power it sometimes starts self oscillating. It's a cool effect to have handy when I'm kneeling down and playing with delay... Crank the voltage up and I get a cool holwing tone that's almost like a theremin. I'm not sure what causes it, but suspect the extra voltage (10k pot=10v rather than 9v of a battery). I sometimes wonder if adding a 12k or so pot would push it more over the edge.

VOLVO))) · February 20, 2011, 10:57:54 PM

Dear eyeprod, post links/diagrams of this voltage control.

eyeprod · February 21, 2011, 01:10:28 PM

it's that exact one that ayek posted. NOTE: but it's only a 10k pot between the input jack and the board. there is no 2nd jack used. it's about as simple as you can imagine.

Not sure why mine feeds back at full power, but it could be something weird going on inside that has nothing to do with that circuit. some feedback loop that is/was unintentional. I'll post my pedal guts when I get a chance. I'm on vacation this week