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Pot replacement question

#21
Nooblett said:
Yeah that'd be a real bummer, and there's not much of a way to make sure that wouldnt happen before buying the pot right? :(
Click to expand...

Tell you what, send an e-mail to Best Bass Gear with the picture of your blend pot and ask them. They might be able to tell you if the standard blend would fit or they might know where you could get the type you need. It couldn't hurt to ask and they are nice guys.

http://www.bestbassgear.com/contact-other.htm
 
#24
SnakeKappele said:
Tell you what, send an e-mail to Best Bass Gear with the picture of your blend pot and ask them. They might be able to tell you if the standard blend would fit or they might know where you could get the type you need. It couldn't hurt to ask and they are nice guys.

http://www.bestbassgear.com/contact-other.htm
Click to expand...

Hello,

Thanks for your inquiry!

Unfortunately I have not seen a blend pot like that and I'm thinking your best bet is to wire a normal blend into that circuitry. I wish I could be of more help, but it seems like that is the only solution I can think of.

Best,

Evan
Best Bass Gear, LLC
www.bestbassgear.com
[email protected]


On 10/21/2010 1:00 PM, Nicolas Leroux wrote:
Hello,

I bought this active bass (A greg bennett design samick Cobrabass) about 8 months ago in a pawn shop for fairly cheap and ever since i bought it the pickup balance blend pot has been giving me some trouble. The problem kept getting worse and worse until now I have to flick it a couple times to get a good sound out of it. I've tried cleaning it with WD-40, rubbing alcohol, and contact cleaner, all to no luck, so now i'm pretty sure the problem is with the mechanics inside of the pot itself. I even tried to solder the bottom of it to see if the problem had anything to do with the contacts but apparently not. And now apparently finding a replacement for this thing is semi-tough, It's a 250k Blend pot (labeled MN250k, see pic ). I have found 250k blend pots online, but none of them looks like they're made to go in a circuit, i could buy one of those blend pots and use a bunch of small wires to connect the blend pot to the circuit board, but that'd be really messy and + it's not even guaranteed that the pot would fit well. Which is my question to you, Do you know anywhere that i could get a blend pot like this? or maybe I should just go with buying a blend pot that isn't made for a circuit and do some funky wiring to get the connections to be made? I would really appreciate any help! Thanks!

Pic: http://i.imgur.com/sNmCB.jpg

Sincerely,
Nicolas Leroux
Click to expand...

so it looks like i'm going to do some fun wiring, hope it isnt too messy
 
#26
#27
FunkMetalBass said:
Alpha makes one:
http://www.alphapotentiometers.net/html/16mm_rot_pot.html (about halfway down the page, 3RP/1610G-XD3, 3RP/1610G-XD4, 3RP/1610G-XD7)

You might have to investigate further and take some measurements to see exactly which one you'll need, but those are all vertical PC-mounted dual-ganged pots.
Click to expand...

Great! :hyper:

The lugs on his pot go toward the shaft.

It's actually 3RP/1610G-XC3A250KC where X is the shaft code.

He'll have to measure the shaft on his pot to see how long it needs to be.

http://www.alphapotentiometers.net/html/16mm_pot_20.html

Thanks!! :)
 
#30
No problem. I came across those today during my elusive search for a 500k/500k concentric pot (really effing common, mind you) that has straight pins instead of solder lug/holes on the terminals (also really effing common, but not on a concentric).

The closest I've found is from Alpha, but the bottom shaft only has a 120-degree rotation (***?) and is, in essence, completely pointless for any of my uses.
 
#31
FunkMetalBass said:
No problem. I came across those today during my elusive search for a 500k/500k concentric pot (really effing common, mind you) that has straight pins instead of solder lug/holes on the terminals (also really effing common, but not on a concentric).

The closest I've found is from Alpha, but the bottom shaft only has a 120-degree rotation (***?) and is, in essence, completely pointless for any of my uses.
Click to expand...

So you need a 500K/500K stacked pot with pins perpendicular to the shaft with close to 360 degree rotation on each shaft?
 
#33
Update! I ordered one of the non-circuit board designed pots before you guys posted that :/ so i went ahead and did my ghetto rig:

N7g5w.jpg


and it works well, sounds good and the pot functions as expected. took me a good hour to make all of the jumpers but the pot was pretty cheap and it was worth it.
 
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#34
I came across this thread because I am having the exact same issue that was described here with the blend pot on my Cobra. Just as an FYI to anyone who finds themselves with a similar problem and reading this thread, I wrote to Alpha Products (the potentiometer manufacturer who was listed above). They have the exact potentiometer that's needed (3RP/1610G- 4C3A250KC). However, they consider it a made-to-order item and will only allow orders of at least 1,000 pieces.

At this time I am still looking for a drop in replacement, but I think a modification like Nooblett ended up doing is seeming more and more likely. If I do find a drop-in, I'll be sure to update this thread for future reference.
 

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