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U.S. Peavey Club

I noticed where some are experiencing humming,and scratchy pots,on some of the T20's? I sprayed the pots,and jack,with some cleaner,and still getting humming. Moved a few feet away from the amp,and still was getting a humming. Probably take it and get the wiring checked now. I posted a picture earlier. Can I get a number?View attachment 801993

I think I'd need to get a black pick guard. Sweet bass!
 
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I think I'd need to get a black pick guard. Sweet bass!
Actually previous owner painted it black,with a gray primer,underneath the black?? I completely stripped the black,and grey primer,and got it back to the original color. Might be alright if you could
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find a black pick guard for a T20. I am sure it could sent to someone,and use the cream colored one for a template? Here is a picture with the amateur paint job?Also found out serial #on back of headstock,dates it made in April 1982.
 
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Actually previous owner painted it black,with a gray primer,underneath the black?? I completely stripped the black,and grey primer,and got it back to the original color. Might be alright if you couldView attachment 802249 find a black pick guard for a T20. I am sure it could sent to someone,and use the cream colored one for a template? Here is a picture with the amateur paint job?
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Don't know? Never had any experience with the T20. Traded for T20,for sentimental reasons,and past memories,of a friend who owned this bass.

My Patriot has a Super Ferrite pickup and it is a single coil, and it gets the 60-cycle hum like other singles do. Not like super loud, but more noticeable when I turn the amp up or use distortion. The T-20 super ferrite looks like a slightly different shape, but my money is on it being a single coil pickup as well, probably just different shaped magnets/poles to the one in my Patriot. I'm sure one of the pros will chime in soon with an exact explanation, but my guess is on your hum being inherent in the pickup.
 
My Patriot has a Super Ferrite pickup and it is a single coil, and it gets the 60-cycle hum like other singles do. Not like super loud, but more noticeable when I turn the amp up or use distortion. The T-20 super ferrite looks like a slightly different shape, but my money is on it being a single coil pickup as well, probably just different shaped magnets/poles to the one in my Patriot. I'm sure one of the pros will chime in soon with an exact explanation, but my guess is on your hum being inherent in the pickup.
Thanks,Basstovsky, appreciate the info. I have been accustomed to the Stingray,and the L2000. Never had a T20 up until now. As long as I don't crank the volume,the hum seems less? Yes the T20,does have the Super Ferrite pickup.
 
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Can any of you Peavey historians explain the relationship between Peavey and Modulus. I have seen some of the Peaveys with Modulus necks and the Cirrus looks an awful lot like a Quantum to me. Thanks!

Modulus definitely made the necks for Peavey for the B Quad 4 and 5 basses. There is speculation that they made the necks for the G Bass and G-V, but I have never seen ANY kind of evidence to really support that idea.

I have owned all 4 of the above. The G series necks don't look anything like the BQ necks on the back side. Modulus necks have a pretty distinctive look to the back side and the BQ necks have the same thing. The G necks look totally different. Some are painted black, but some have the weave of the carbon fiber matte showing and it looks nothing like the Modulus necks. Also, the BQ necks have phenolic fingerboards where the G necks have Pau Ferro. And the BQ5 neck definitely felt a bit wider and thinner than the G-V neck. I really liked the G-V neck profile. I didn't really bond with the BQ5 neck profile as much. This all makes me a little skeptical that the G necks are from Modulus.

And that's all I know about it.
 
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My Patriot has a Super Ferrite pickup and it is a single coil, and it gets the 60-cycle hum like other singles do. Not like super loud, but more noticeable when I turn the amp up or use distortion. The T-20 super ferrite looks like a slightly different shape, but my money is on it being a single coil pickup as well, probably just different shaped magnets/poles to the one in my Patriot. I'm sure one of the pros will chime in soon with an exact explanation, but my guess is on your hum being inherent in the pickup.

As far as I've been able to determine, both the small size ferrite (as seen in the Patriot and Foundation) and large size (as seen in the T-40 and early Fury basses) are single coil pickups. I've played both and owned the large version and they all will hum a bit. I don't find it to be a problem, but if your amp, effects chain or venue is prone to hum you will notice it.

Also, most peavey fans are aware, but for those that aren't, that I call the early version "Large" because while it looks about the same at first glance, under the pickguard the pickup is about twice as big (around as big as a Gibson mudbucker).
 
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I'm in agreement with both StuartV and Elilf.

The necks on my G-bass and B-Quad 4 are quite different,G-bass is black has Pau Ferro fingerboard but more striking is there's no TR on the B-Quad.
This suggests different construction methods.

I call the T-20 & early Fury super ferrites Large too,just because of the arrangement below the PG.
 
One other thing to add. Since the Ferrite's of both kinds already have quite low hum for single coils, one might be able to get even lower amounts of hum with cavity shielding. I don't know about all models, but I've seen at least a few examples with no shielding around the pickups. Just something to consider.
 
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One other thing to add. Since the Ferrite's of both kinds already have quite low hum for single coils, one might be able to get even lower amounts of hum with cavity shielding. I don't know about all models, but I've seen at least a few examples with no shielding around the pickups. Just something to consider.
Might be a dumb,question,but I have never had to shield the cavity of the bass before? What kind of materiel do you use?
 
Might be a dumb,question,but I have never had to shield the cavity of the bass before? What kind of materiel do you use?

I use copper tape.

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Some people like to use graphite paint.

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I like the copper because it looks dang cool when you're done (even though you can't see it once the bass is put back together). And I don't like cleaning paint brushes.
 
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Also, I like to take the bridge off, put a piece of copper tape on the bass under the bridge, then sandwich the bridge ground wire between that copper and another piece of copper tape, then put the bridge back on to cover it all up - and ensure a really good ground contact for the bridge. I wouldn't want to do that with graphite paint.
 
Can any of you Peavey historians explain the relationship between Peavey and Modulus. I have seen some of the Peaveys with Modulus necks and the Cirrus looks an awful lot like a Quantum to me. Thanks!
StuartV gave you some info on this ,but I wanted to add that a former employee of Peavey had gone to work for,or run Modulus,and that is when the relationship between the two companies started.
 
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