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I would buy a reverse taper pot from Small Bear. I am pretty sure that if you look at a Coloursound volume or wah pedal that you will get all of the info you will need to wire up a replacement. Jon or Martin would know off the top of their heads.
The tendency these days is to use linear taper parts for everything, you can always change the pot or add two parts and change the relative response. I would first replace the pot with an original if it broken. The bump you speak of is a matter for concern, could be a snarky nearby bypass cap or some goofy shit like that, I would experiment with a resistor switch box or a pot swap jig If I have time to piss around. Before all of that I would ask Jon or Martin or Frank or Jerry.
A while back I decided to build my own Vactrols using different leds and enclosures and other mad scientist noodling etc.... if you need one or two photocells, now illegal in the EU (?) I recently rebuilt four Farfisa pedals for a pal and they work great using these photocells, I am thinking I got a bag of 'the original' generic photocells. Send me an address or whatever I will send you some.bestgi think I got them from Electronic Goldmine or All Electronics really cheap withing the last year or two.
On Mon, Jan 2, 2012 at 9:18 AM, <fdoddy@aol.com> wrote:
I have a 30 year old Morley optical volume pedal and it works just as good today as the day I bought it. Go for the optical pedal, no noise!!!
fritz-----Original Message-----
From: Jack Younger <e4103s@yahoo.com>
To: newmellotrongroup <newmellotrongroup@yahoogroups.com>
Sent: Sun, Jan 1, 2012 8:26 pm
Subject: Re: [newmellotrongroup] Expression/volume pedal
You will get more even response with an optical volume pedal. Pots get scratchy and one never knows how smooth the taper will be. Even with an expensive replacement pot, these problems happen.I have the pedal portion of a '70's Morely Echo Delay pedal I got from an ebay purchase that turned up broken after shipping. I was bummed out that the delay was dead but I've gotten my money's worth with a little elbow grease. It's optical volume function is superb.....steady, smooth and dynamic.I don't know how the new stand-alone Morely volume pedals stand up against this one, but it's worth a shot. A lot of pedal steel players prefer optical pedals and so you may want to research what those guys like to use.Happy New Year!-Jack
From: Sean <fourtytwominds@yahoo.com>
To: newmellotrongroup@yahoogroups.com
Sent: Saturday, December 31, 2011 9:01 PM
Subject: [newmellotrongroup] Expression/volume pedal
An hour of googling has been fruitless.
How do you guys get even response on a volume pedal?
At current I have an Ernie Ball VP Jr mono volume pedal. It's between the source and the amp. V. simple.
From heel to near full the pedal is fairly even but still quiet. In the last say... 1/8 to 1/16 of an inch of play it goes from quiet to full. It's pissing me off. It's pissing my band mates off. We either get not enough Hammond/Mellotron or WAY TOO DAMNED MUCH.
I'm capable of replacing the pot in the pedal no problem. What rating and taper am I looking for? No one on the google seems to know.
Thanks.
-Sean
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"All music is folk music; I ain't never heard no horse sing a song."Louis ArmstrongGino Wong BirgeloBSComm, BSEE, CG, CSEC