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Post by frets on Feb 25, 2021 15:45:17 GMT -5
Guys I’m having a problem with a Strat whereby it has hum when the blend pot is rotated toward the bridge side. The other symptom is, when I pull up on the Volume/Bridge Series, the hum is eliminated. I’ve never had this happen before and I have thoroughly gone through with my meter and 4 visual inspections.
Any help would be greatly appreciated. It is embarrassing, as I’m usually the one that fixes hum in a guitar and now for the life of me, can not find the problem. 😿😿
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Post by JohnH on Feb 25, 2021 17:38:58 GMT -5
Hi frets
A few Q's:
Whats your circuit diagram?
Do all the settings sound in phase if they are supposed to?
what are the pickups? are they basic single coils or are some of them a hum cancelling type?
Is the middle pickup opposite magnetism to B and N?
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Post by frets on Feb 26, 2021 15:04:34 GMT -5
John et. al., Here is the wiring used.  The pickups are Bootstrap Sparkles, first time I’ve ever encountered them. The client wanted the M not reverse wound. Positions 2 and 4 are fine, no hum. 1,3,5 = hum. Can’t find it. |
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Post by JohnH on Feb 26, 2021 15:33:55 GMT -5
Hi frets so those look like a pretty much simple classic type of pickup: bootstrappickups.com/products/bootstrap-54-vintage-sparkle-set-for-strat%C2%AEWhat Im not getting is, if the middle is not RWRP, then everything should hum unless you have an out of phase setting? Or is this a different sort of hum beyond single coil type hum? Just to check, if you get a magnet or another pickup, does it either attract or repel the same when face to face with all three of those pickups? if none of them are RWRP then they should all respond the same. |
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Post by frets on Feb 26, 2021 16:55:50 GMT -5
John, the middle is not reverse wound. For some reason, he didn’t want it that way. But the problem is moot as I have talked him into a standard harness with the second tone pot as a blender. But thanks anyway.😻
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Post by unreg on Feb 26, 2021 17:04:39 GMT -5
Positions 2 and 4 are fine, no hum. 1,3,5 = hum. Can’t find it. But, since humbuckers have two rows of pole pieces... and you only receive hum when a single row of pole pieces is active, maybe that’s kind of similar? Positions 2 and 4 act as humbuckers? But, the problem has been solved so 👍😁 |
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