The linked pages give further detail of controls, circuitry and components of Gibson EB3 bass guitars circa 1961-79.
Gibson EB-3 controls
EB3 controls (1978) - What the varitone and four pots actually do. This sheet, produced by Gibson in the late 1970s, describes the operation of an EB3 with series 2 circuitry (see below). The varitone switch is wired back to front from 1960s and early 1970s versions (series 1) of this bass.
Gibson EB-3 part lists
EB3 parts list (1965, 1971, 1977, 1981) - Components (electrical and hardware) used in the manufacture of the EB3 bass guitars - listed with part numbers.
EB-3 circuitry
Series 1 - 1961-1971
Series 1 looms are characterised by the large rectangular metal tone choke, part GA-90C-1.
Gibson EB3 circuit schematics series 1 - Wiring diagram appropriate to earlier EB3 basses (1961-1971).
Circuit images 1 - A look at the earlier (wide-spaced) wiring loom fitted to all EB3 basses circa 1961-65.
Circuit images 2 - A look at the mid period (narrow-spaced, with input jack on the body front) wiring loom in a late 1960s EB3 - relevant to non-slotted-headstock basses produced between 1965 and 1969.
Circuit images 3 - This loom is very similar to the loom above, though with a side mounted jack - as seen on all slotted headstock EB3 basses, circa 1969-71.
Series 2 - 1972-1970
Series 1 looms are characterised by the smaller cylindrical black cloth-wound choke.
Gibson EB3 circuit schematics series 2 - Wiring diagram appropriate to later period EB3s (1972-1979).
Circuit images 4 - The 1972-79 EB3 loom again had a front-mounted input jack, but the smaller tone choke, also used in the Gibson Ripper.
The EB3 was listed as using the following potentiometers - whilst broadly correct, in some cases alternatives may have been fitted.
Gibson EB3 bass for sale
"1973" Vintage Cherry "GIBSON EB-3" with OHSC Serial #056076 in Great Condition
Riverside, California, 925**, UNITED STATES OF AMERICA
$3795
Gibson EB-3 Cherry Mod 1969 Electric Bass Guitar Original Case Slotted Head Art
El Segundo, California, 902**, UNITED STATES OF AMERICA
$3500
... more
Vintage Gibson EB3 Bass Guitar
Upper Sandusky, Ohio, 433**, UNITED STATES OF AMERICA
$2477
... more
Gibson EB3 Bass Vintage
Edmonton, Kentucky, 421**, UNITED STATES OF AMERICA
$1990
Gibson Slothead EB-3 1971 - Cherry Fretless Bass w / Original Gibson Case
Huntington, Indiana, 467**, UNITED STATES OF AMERICA
$1500
This bass is an absolute monster and sounds incredible! I don't know for sure (I kinda doubt it) that this would have come from the Gibson factory as fretless. However, whoever did the job has done it professionally and it looks great!
The electronics work perfectly and it has that classic "double bass" tone in the first position!
There is some bow in the neck. The truss doesn't ... more
1963 Gibson EB-3 Bass ex Bob Daisley (Rainbow, Black Sabbath)
Doncaster, DN6***, UNITED KINGDOM
£7999
We are happy to offer the following from the personal Private Collection of The Blizzard Himself that Being Bob Daisley whom is Heavy Rocks most distinguished and respected of all Bass Players and Songwriters, details as follows
History
The history and career of Bob Daisley is Legendary and has been one of the main contributors to the sound, look, style of the following Iconic Hard Rock artists some of which are as follows:
Rainbow - Black Sabbath - ... more
Gibson EB-3 1965 - Cherry Red JACK BRUCE CREAM
Doncaster, DN6***, UNITED KINGDOM
£5499
Internally / Externally Original
Mahogany body / rosewood fretboard
Humbucking pickup in the neck and mini-humbucker in the bridge
Four-way rotary pickup selector switch
Condition 8 / 10
Case
ALL ... more
Gibson EB-3 Bass Guitar 1967
Horncastle, LN9***, UNITED KINGDOM
£2950
Gibson EB-3 bass (with slotted headstock) USA / 1971
Donisthorpe, DE12***, UNITED KINGDOM
£2250
EXPORT price is £2250. UK price is £2450, with FREE (mainland) DELIVERY
Rare "slotted headstock" variant of Gibson EB-3, only made twixt 1969-1972. Over 14, 000 EB-3s were hand-made by the Kalamazoo factory ( Michigan / USA), ending in 1979. With set necks (not woodscrews ), and top craftmanship from day one the EB-0 and EB-3 models were played all over the world. Prominent British players were... more
1971 GIBSON EB 3 SLOTTED HEADSTOCK BASS CASE - made in USA
COLOGNE, GERMANY
€444
* CASE ONLY !
* strap that holds case open=GONE
* bottom and top are loose =need reglueing
* tolex has rips
* all latches are working fine
* check all pics
Over 1000 more
GUITARS-BASSES-PARTS in our OTHER
AUCTIONS !!!!
TAKE A LOOK !!!... more
1971 GIBSON EB 3 SLOTTED HEADSTOCK BASS CASE - made in USA
COLOGNE, GERMANY
€399
* CASE ONLY !
* interior has stains
* tolex has rips
* all latches are working fine
* worn but solid
* check all pics
PLENTY of PARTS for SALE
ATTENTION! OVER 1000 more
GUITARS-BASSES-AMPS-PARTS
in our OTHER AUCTIONS !!!
CHECK OUR SHOP OUT -------------->>>>>-------------->>>>>
... more
1971 GIBSON EB 3 SLOTTED HEADSTOCK BASS CASE - made in USA
COLOGNE, GERMANY
€399
* CASE ONLY !
* interior has stains
* tolex has rips
* all latches are working fine
* worn but solid
* check all pics
PLENTY of PARTS for SALE
ATTENTION! OVER 1000 more
GUITARS-BASSES-AMPS-PARTS
in our OTHER AUCTIONS !!!
CHECK OUR SHOP OUT -------------->>>>>-------------->>>>>
... more
1971 Gibson EB 3 HÜLLE - passt NUR SCHLITZKOPF Version
COLOGNE, GERMANY
£399
* CASE ONLY !
* strap that holds case open=GONE
* bottom and top are loose =need reglueing
* tolex has rips
* all latches are working fine
* check all pics
* SOLD AS IS - NO RETURNS... more
1971 Gibson EB 3 SLOTTED HEADSTOCK BASS CASE - Made in USA
COLOGNE, GERMANY
£345
* CASE ONLY !
* interior has stains
* tolex has rips
* all latches are working fine
* worn but solid
* check all pics
... more
Gibson EB-3L 1973 - Vintage Bass Guitar, Long Scale - Original Hard Case - Rare!
Meadow Heights, VIC, 3***, AUSTRALIA
AU $4895
Long Scale 1973 model bass guitar with original hard case
All pictures supplied with the auction are of the actual item for sale, and indicate its condition
This vintage Gibson is in good playable condition with a clean fingerboard and neck, good fretting and fully functional tuners. This model is fitted with a drop-D tuner (adjustable) which functions well. The pickups and wiring appear original, are operational, and it sounds superb. It has been fitted with a set... more
Do you have (or know where I can find) any diagrams for modifications to this circuit. Is there a record of the Jack Bruce mod? Thanks, great site by the way