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Humbuckers 101
Posted: Thu Jul 05, 2007 10:03 am
by firstbassman
OK, time for one of my dumb questions.
What is the proper name or description for the pickup pictured on top and for the one on the bottom?
And (other than appearance) what are the differences between the two?
Thanks!
Posted: Thu Jul 05, 2007 11:25 am
by beatlefreak
They're both humbuckers. The top one has a cover on it.
Posted: Thu Jul 05, 2007 12:43 pm
by firstbassman
Kris, yes I know they're both humbuckers.
Why do some have covers and others don't?
Why does the top show six "dots" and the bottom show twelve?
Is there a difference in sound?
Etc.
Posted: Thu Jul 05, 2007 1:16 pm
by tennis_nick
the cover is purely cosmetic. some people claim a smotoher high end with covers on (load of bollox) other than that, it's all visual.
traditionaly gibby humbuckers have 6 adjustable poles, and 6 slugs. when you place covers on pickups, the adjustable ones are left visible, except on EMG's and Tony Iommi pickups that have bar magnets.
Posted: Thu Jul 05, 2007 1:17 pm
by tennis_nick
oh, as for names, you can call them covered humbuckers, (gold, chrome or nickel) or an open coil pickup
Posted: Thu Jul 05, 2007 3:21 pm
by beatlefreak
The cover (plated metal) is soldered to the metal base of the pickup which is also connected to the shield (ground). So it does offer some shielding.
Posted: Fri Jul 06, 2007 3:13 am
by jwr2
also there are series and parallel humbuckers ...
Posted: Fri Jul 06, 2007 3:13 am
by firstbassman
Gotcha. Thanks!
Posted: Fri Jul 06, 2007 9:12 pm
by octagon
What difference does it make whether humbuckers are wax potted like a Burstbucker Pro or not potted like the Burstbucker 1,2 and 3s?
Posted: Sat Jul 07, 2007 1:20 am
by tennis_nick
Potting helps eliminate microphonic feedback, or squeeling when the pickup is pushed into higher gain. Original HUmbucker (From the 50's), and burstbucker pro's are NOT waxed potted, and offer a really great overdriven tone, than you can sorta force into a controlled feedback (like Clapton when he played Crossroads live (he only does it on one note))
IF you're looking for replacement humbuckers that ARE NOT wax potted... I LOVED the Burstbuckers that come in the Vintage Mahogany Les Paul.
if you want Wax potted, try Seymour DUncan 59, or JB, or Custom Custom... assuming you want the sound that I like!
Posted: Mon Jul 09, 2007 5:46 pm
by soundmasterg
The cover, if it is made of a magnetic metal WILL affect the inductance of the pickup, which affects the sound and power output level. Case in point, the Epiphone humbuckers use a brass cover and a vintage PAF uses a nickel silver cover. Brass is non-magnetic, and the highs and lows are more pronounced and the pickup tends to sound less natural. Wax potting helps to avoid feedback problems, but it also reduces the touch response of a pickup. Someone in the crowd would never notice any difference, but the player sure notices.