pickup

Amplifiers, effects, pickups, electronic components, wiring, etc.

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Dana Murphy
Posts: 186
Joined: 8 Jun 1999 12:01 am
Location: Clarksburg WV USA

pickup

Post by Dana Murphy »


I have a BL710 pickup that reads 23.4 k Ohms. is that what it should be. I am getting a little distortion. thanks dana
Donny Hinson
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Joined: 16 Feb 1999 1:01 am
Location: Glen Burnie, Md. U.S.A.

Post by Donny Hinson »

That sounds like it's "in the ballpark" to me. Pickups very seldom cause distortion, since they're limited anyway by the guitar, and foot volume controls.
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Jim Smith
Posts: 7949
Joined: 4 Aug 1998 11:00 pm
Location: Midlothian, TX, USA

Post by Jim Smith »

Screw the pickup screws in more such that the pickup is further away from the strings. This will weaken the signal and help keep from overdriving your amp. It should be at least the width of three quarters (25 cent pieces) from the strings.
jerry wallace
Posts: 762
Joined: 7 Dec 1999 1:01 am
Location: Artesia , NM (deceased)

Post by jerry wallace »

Dana, the 23k is ok on the 710..It sounds like you are overdriving somewhere..What do you have inline between the pickup and amp?
if its a effects unit ,stomp box etc.you maybe overdriving it..Some units have a gain control that you can cut back.Some have a LED that shows when your overdriving...The 710 is a high output pickup..

------------------
Jerry Wallace- "98 Zum: D-10,8+8, "96 Zum: D-10,8+5,Nashville 1000,Session 500 ,Tubefex,ProfexII, Artesia, New Mexico

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Jack Stoner
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Joined: 3 Dec 1999 1:01 am
Location: Kansas City, MO

Post by Jack Stoner »

The "standard" distance from the strings for a 710 is 3/16". If you get it too close you will get some distortion.

I have them on my Franklin and I have them set a loose 3/16" and there's plenty of output, no distortion, great tone etc.
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Dave Van Allen
Posts: 6161
Joined: 4 Aug 1998 11:00 pm
Location: Souderton, PA , US , Earth

Post by Dave Van Allen »

I had a "mystery distortion" in my BL 712 that came with my ZumSteel... I tried lowering the PU to the point the tone really suffered but there was always a "break up" on more than two notes at a time. Sounded GREAT on single note stuff (at a proper distance from the strings), but chords were problematic even at the most extreme adjusted distance from the strings.
I had to trouble shoot this in the studio at a session, and eliminated cables, volume pedal and amp as culprits, tracing it back to the PU itself.


Seeing as Bethlehem PA is a relatively short drive,I took my PU to BL's shop and after several hours of testing and equations and Bill telling me incomprehensible stuff about It wasn't the ohms it was the henrys Image and the like, Becky took a sheet of Bill's calculations into the back room and built me a customized 712...that I am EXTREMELY happy with.

It MAY have been an interesting interaction with the metal plate the PU mounts to in my guitar... or not. I never really comprehended what Bill changed, but I am glad he did.

I would suggest you contact Bill and Becky directly .

becky@billlawrence.com
(610) 974-9544<FONT SIZE=1 COLOR="#8e236b"><p align=CENTER>[This message was edited by Dave Van Allen on 13 June 2001 at 10:25 AM.]</p></FONT>
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Hiro Keitora
Posts: 813
Joined: 29 Dec 1998 1:01 am
Location: New York, New York

Post by Hiro Keitora »

So what is causing this "funny" distortion? I hear some P.U. breaks up even you back down on volume pedal. I love talking to Bill in "mystery" language anyway, but I really can't put my finger on the symptom.
Dan Dowd
Posts: 533
Joined: 4 Aug 1998 11:00 pm
Location: Paducah, KY, R.I.P.

Post by Dan Dowd »

My 12 string 712 measures 32 k ohms. However being a humbucker there are 2 coils in series so the actual pickup ohms is 1/2 of that or 16 k ohms. Im not sure if a 12 string PU because of the longer length of the PU is wound to a set number of turns or to a ohm/inductance value. I have 2 Emmons single coil PU's and one is 14.6 k ohms and has a green wire in the shield and the other is 18.7 k ohms and has a white wire in the shield. I wonder if the color wire identifies it as a C6th or E9th position pickup.
Jeff Peterson
Posts: 904
Joined: 22 Jan 1999 1:01 am
Location: Nashville, TN USA

Post by Jeff Peterson »

Ohms readings mean nothing. There is no 'standard' distance from pickup to strings. You can 'load' a pickup just like your Chevy. The half-life of a pickup magnet is about 500 years. Bill Lawrence designs pickups.....others wrap wire around magnets. Compared to Bill, no other manufactuer has anything close to quality-control. Bill's a great, close friend....if I had to chose between that and a pickup......I'd be hard pressed.(kiddin') I think Becky's hot.(not kiddin').
C'mon guys, contact Bill....the fog will lift, I promise.