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Topic: L-910 p.u. overloads on plucking 10th string |
Wiz Feinberg
From:
Mid-Michigan, USA
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Posted 23 Oct 2004 2:57 pm |
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I was wondering if I am the only one this is happening to, or if it is a more common problem?
I have mounted BL-910s on my Emmons P-P. I have lowered the pickups to about 3/16" under the strings (as far down as they will go), yet, if I pull on the 10th string, on the E9 or C6 neck, and let her go hard, the pickup itself overloads and compresses the output!
I have removed all other electronic devices from the loop, except for the volume pedal and Nashville 400s amp. To prove that it's not the amp I turned the input volume way down, and reduced the master to half. I back off the volume pedal to a reasonable level, and let the 10th string go, and the compression occurs. It does not seem to occur on the other strings.
Does this sound like a situation where I need to shorten the coil springs under the pickup and lower it even more? The overall volume has dropped off already, when I pick normally, from my lowering it to -3/16".
Or, could it be a defective pickup? The C6 exhibits almost the same compression, but not as bad.
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Bob "Wiz" Feinberg
1983 Rosewood Emmons D10 Push-Pull, with 8 pedals and 9 knee levers, Lawrence L-910 pickups and aluminum necks. Nashville 400 amp with Peavey Mod. Emmons pedalbar mounted, and Goodrich LDR floor volume pedals.
I use and endorse Jagwire Strings and accessories.
Keep Steelin' but don't get caught!
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Larry Clark
From:
Herndon, VA.
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Posted 23 Oct 2004 9:05 pm
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| Wiz, I have 910's on both necks of my guitar as well. Both are set at 3/16ths on the bass side. I have no problems with them. Since you seem to be experiencing the same problem with both pick-ups I seriously doubt the 910's are at fault(the odds of both pick-ups being defective in some way is extremely slim). When you say that compression is cutting in, are you referring to the DDT compression on the Nashville? |
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Wiz Feinberg
From:
Mid-Michigan, USA
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Posted 23 Oct 2004 10:15 pm
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quote:
When you say that compression is cutting in, are you referring to the DDT compression on the Nashville?
Larry;
No. The amp is set to a very low volume and I am backing off the volume pedal. There is nothing between the amp input, other than the passive volume pedal (500 k ohm pot), and all effects are pulled from the effects loop. DDT cuts in at high volume levels. I conduct these tests at very low volume (a few watts. The pickups themselves are overloading, believe it or not. I just was wondering if this happens to anybody else. It only occurs when I use my thumb to pull and release the 10th string, like a bass player does, on either neck, but mostly on E9.
Weird, Some kind of hysterisus overload, caused by excessive magnetic drive within the induction coil. I use Jagwire .036 wound for my E9 10th string.
I will investigate some more, but it is definitely a problem for me. Maybe the pickup needs to be moved farther away from string #10.
I never had this problem with the George L's I had before, and sold.
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Bob "Wiz" Feinberg
1983 Rosewood Emmons D10 Push-Pull, with 8 pedals and 9 knee levers, Lawrence L-910 pickups and aluminum necks. Nashville 400 amp with Peavey Mod. Emmons pedalbar mounted, and Goodrich LDR floor volume pedals.
I use and endorse Jagwire Strings and accessories.
Keep Steelin' but don't get caught!
[This message was edited by Wiz Feinberg on 23 October 2004 at 11:16 PM.] |
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Marco Schouten
From:
Amsterdam, The Netherlands
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Posted 24 Oct 2004 2:52 am
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Mine is even a little closer to the strings, but no problem with the Jagwire strings.
Are all the electric connections soldiered properly?
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Steelin' Greetings
Marco Schouten
Sho-Bud LLG; Guyatone 6 string lap steel; John Pearse bar; Emmons bar; Evans SE200 amp
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Craig A Davidson
From:
Wisconsin Rapids, Wisconsin USA
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Posted 24 Oct 2004 7:38 am
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| Wiz, Turn your bass down one number and try it. I had that with my Evans and was overdriving the input. It might not seem like enough bass but there will be plenty out front as bass develops after 20 feet. |
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John Daugherty
From:
Rolla, Missouri, USA
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Posted 24 Oct 2004 12:29 pm
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| This problem sounds like a bad string to me or maybe a mechanical vibration at the nut or changer. If that is a "B" note, it may be mixing with hum from the power line. I use to have a hollow body lead guitar that would only feed back on a "B" note on the sixth string,7th fret. Hold the bar on the string to see if it distorts on another note. |
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Wiz Feinberg
From:
Mid-Michigan, USA
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Posted 31 Oct 2004 6:57 am
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I fixed the problem with my L-910 overloading by swapping it out for a Wallace TrueTone, wound to 17500. The problem has gone away, so that was the required fix. Anybody else who has a humbucker that thumps on bass notes can fix it the same way.
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Bob "Wiz" Feinberg
1983 Rosewood Emmons D10 Push-Pull, with 8 pedals and 9 knee levers, Wallace TrueTone E9 and Lawrence L-910 C6 pickups and aluminum necks. Nashville 400 amp with Peavey Mod. Emmons pedalbar mounted, and Goodrich LDR floor volume pedals.
I use and endorse Jagwire Strings and accessories.
Keep Steelin' but don't get caught!
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