Gibson switched from bakelite bass pickup covers to metal in 1962; although Gibson EB-0 and Epiphone Newport basses continued to use up the bakelite covers into 1963, presumably until stock was exhausted.
The pickup itself was unchanged. Just four screws hold the cover in place; note the spacing differs from the earlier bakelite-covers, and the later narrow/tall covers. Dimensions 2 1/4" x 3 3/8". They are slightly wedge-shaped, rising from 1/8" (neck side) to 3/16" (bridge side).
Initially covers were nickel-plated (part code PU-601-N), at least as fitted to the EB-0 and Newport, and chrome-plated (part code PU-601-CR) for the EB-3, but by 1965 the majority of basses seem to have had chrome-plated covers. As is always the case with Gibson, there are exceptions. Also fitted to the EB-2 and Rivoli.
The EB bass humbucker didn't have the traditional arrangement of windings around the magnet; rather the coils (covered with black insulating tape) lie vertically around a central former with an Alnico magnet at either end. The four polepieces are situated in the center of the pickup, in a metal (later plastic) bobbin between the two coils. The coil assembly is screwed onto a metal 'frame' from below with two screws visible on the underside.
Upgraded with a new, taller pickup cover (here) gradually across 1967/68.
List of Gibson bass guitar pickups
Gibson bass pickups for sale
Gibson EB-O Electric Bass Guitar 1972 Walnut Kalamazoo Short Scale Humbucker
New Brunswick, New Jersey, 089**, UNITED STATES OF AMERICA
$1700
Gibson 1972 EB-O Mahogany Body(Walnut Finish), 3 Piece Maple Neck w / 22?? Short Scale 21 ... more
VINTAGE 1970'S GIBSON SB 450 BASS GUITAR PICKUP
Richmond, Virginia, 232**, UNITED STATES OF AMERICA
$499
... more
Vintage NOS 1960 s Gibson Epiphone Newport Bass Pickup
Coldwater, Michigan, 490**, UNITED STATES OF AMERICA
$400
New old stock
See photos for exact condition
See my ebay store for more Vintage Guitar and Bass Parts
... more
Replica Gibson EB-2 Style Semi-Hollow 5-String Bass | Sire Marcus Miller Pickups
Brookings, South Dakota, 570**, UNITED STATES OF AMERICA
$449
It is in the style of a Gibson EB-2 type bass or generally the recognizable semi-hollow basses of the 60's from leading brands like Gibson, Epiphone, Guild, Hagstrom & Hofner. As far as I'm aware, there were no semi-hollow 5-string basses like this that existed back then and very few that exist even now.... more
1987 GIBSON BASS IV - Made in USA - THUNDERBIRD PICKUPS
COLOGNE, GERMANY
£1090
* the black painted part of the body was cut off before by some moron and replaced with 2 pieces of ash=
check pic 5
* pearl white finish is very worn
* Thunderbird pickups
* black Schaller hardware
* ebony fingerboard, frets are fine
... more
Vintage Gibson G3 pickups in Grabber style boutique bass
Lions Head, Ontario, N0H***, CANADA
C $4500
Through neck design.
Figured maple body & neck with exotic wood center stripe.
Ebony fret board
Ebony headstock
Ebony string-through body inset
Bone nut
4 way rotary switch gives extra setting for neck pickup only. First 3 positions same as traditional Gibson G3 bass. CTS pots
Orange drop capacitor
Hipshot 3 point bridge
Hipshot Ultralite tuning machines
Finish is French ... more