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Les Paul Signature low imp pick ups

Les Paul Signature low imp pick ups
« on: November 13, 2009, 07:58:32 PM »
Someone please help.I have an LP Signature.All it has is the orig low imp pkups.I found a low imp transformer and it makes the pk-ups work 100% -excellent-//but whatever pots I use,the volumes will only work from off to 8 and then on to 10.It just makes no sense at all.I even tired another transformer and 250 & 500 K pots and they did the same thing.HELP PLEASE.

Les Paul Signature low imp pick ups
« Reply #1 on: November 14, 2009, 08:28:16 AM »
Quote from: neal;12381
Someone please help.I have an LP Signature.All it has is the orig low imp pkups.I found a low imp transformer and it makes the pk-ups work 100% -excellent-//but whatever pots I use,the volumes will only work from off to 8 and then on to 10.It just makes no sense at all.I even tired another transformer and 250 & 500 K pots and they did the same thing.HELP PLEASE.
You need to find out how low the impedance of the pick-ups are. You can check them with a digital multimeter on the ohms range (not technically correct as impedance is not exactly the same as resistance but it will give you an idea).

If you have high value pots (250K or more) which are normally used with high impedance pick-ups (3-10k ohms) and use these for low impedance pick-ups then what you are experiencing is what would be expected; only output from 8-10 or so.

If you let me know what the pick-ups measure I may be able to work out what pots will be suitable, but you could start with something like 10k ohms if you have any around. Remember to lift at least one connection from the pick-up winding when measuring as connected to the other components it will give a false reading.

Hope that helps a little.

Mike.
Retired Radio and Electronics Engineer residing in Cambridgeshire.

Les Paul Signature low imp pick ups
« Reply #2 on: November 17, 2009, 04:08:41 PM »
Gibson's original spec for these pots was 2.5K Audio (Log).  I note that you use the word "volumes" in your post.  The LP Signature has only a single master volume pot - the other is used as a master tone control.

lp signature
« Reply #3 on: November 17, 2009, 04:38:11 PM »
Hello,that doesn't help me at all.Just curious if you read my question?All pots are changed.Thanks

Les Paul Signature low imp pick ups
« Reply #4 on: November 17, 2009, 05:21:45 PM »
Quote
Just curious if you read my question?


Your post doesn't appear to contain a question.

Les Paul Signature low imp pick ups
« Reply #5 on: November 17, 2009, 05:49:23 PM »
Quote from: neal;12434
Hello,that doesn't help me at all.Just curious if you read my question?All pots are changed.Thanks
Changed to what value?

I think you have your answer; the originals were 2.5K log.

Not too sure what else you want to know?

Mike.
Retired Radio and Electronics Engineer residing in Cambridgeshire.

LP signature pots
« Reply #6 on: November 18, 2009, 01:57:21 AM »
Hello,if I didn't make myself clear.I have ONLY the orig pk-ups.I found a transformer and 4 250k pots.The pk-ups now sound 100% strong and are now ONLY high imp.Now,the big problem is that the pots do NOTHING.And yes,I have tried other pots and another transformer

Les Paul Signature low imp pick ups
« Reply #7 on: November 18, 2009, 01:57:55 AM »
Hello,if I didn't make myself clear.I have ONLY the orig pk-ups.I found a transformer and 4 250k pots.The pk-ups now sound 100% strong and are now ONLY high impedence.Now,the big problem is that the pots do NOTHING.And yes,I have tried other pots and another transformer

Les Paul Signature low imp pick ups
« Reply #8 on: November 18, 2009, 08:33:21 AM »
Could it be that the pots are incorrectly wired then?
Mike.
Retired Radio and Electronics Engineer residing in Cambridgeshire.

Les Paul Signature low imp pick ups
« Reply #9 on: November 18, 2009, 01:28:20 PM »
No chance.I have had my tech even check it out and he can't figure it out either

 

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