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
Gibson eb-3 bass guitar, 1960s
Jamaica, New York, 114**, UNITED STATES OF AMERICA
$300
IN WORKING CONDITION, CRACK ON BOTTOM
The Gibson EB-3 bass guitar from the 1960s is a classic electric bass guitar known for its vintage charm and iconic design. With a solid cherry body, four-string configuration, and a model year of 1969, this guitar offers a timeless look and sound that has made it a staple for bass players in various musical genres. The Gibson brand is legendary for producing high-quality instruments, making the EB-3 a sought-after choice for musicians looking for a ... more
1961 Gibson EB-3 the cleanest original extent w / hang tags 1 of a kind & Minty !
Fort Lauderdale, Florida, 333**, UNITED STATES OF AMERICA
$11495
1969 Gibson EB3 Bass Guitar- 100% Original with Original Case
Glastonbury, Connecticut, 060**, UNITED STATES OF AMERICA
$3700
1960s Gibson eb-3 Bass Guitar
Jamaica, New York, 114**, UNITED STATES OF AMERICA
$1000
No lowballs
Price is pretty firm , reasonable offers accepted
If its $1000 why do u think id accept a $300 offer? Local pickup because I know how you guys like to scam on Ebay... more
Gibson eb-3 bass guitar, 1960s / 1970s
Jamaica, New York, 114**, UNITED STATES OF AMERICA
$1900
Vintage gibson, in working condition , broken alongside the bottom, seems to be an easy fix if you know what youre doing. Local pick up NYC... more
"1973" Vintage Cherry "GIBSON EB-3" with OHSC Serial #056076 in Great Condition
Riverside, California, 925**, UNITED STATES OF AMERICA
$3295
1972 Gibson EB-3 Mahogany Bass Guitar
Kokomo, Indiana, 469**, UNITED STATES OF AMERICA
$2000
Gibson EB-3 Cherry Mod 1969 Electric Bass Guitar Original Case Slotted Head Art
El Segundo, California, 902**, UNITED STATES OF AMERICA
$3500
... more
Gibson 70s EB-3 WALNUT Used Electric Bass
Union, New Hampshire, 038**, UNITED STATES OF AMERICA
$1275
1969 Gibson EB-3 Cherry
Antioch, Tennessee, 370**, UNITED STATES OF AMERICA
$3199
1969 Gibson EB-3 Husk Repaired Headstock
Spring Hill, Florida, 346**, UNITED STATES OF AMERICA
$800
... more
Gibson EB-3 Bass Guitar 1967
Horncastle, LN9***, UNITED KINGDOM
£2950
Gibson Eb-3 Bassgitarre
Meisterschwanden, 5***, SWITZERLAND
CHF2250
1965 Gibson EB-3 Bass Guitar
Farnham, GU10***, UNITED KINGDOM
£3062
The EB-3, widely known as the classic Cream bass, was used and made most famous by Jack Bruce from blues-rock pioneers 'Cream' around 1967 onwards. He had a few of them over that time period, but his main and most photographed instrument was a matching '65. The spacing between the control knobs was changed in 1965 to match the guitar line, so only a percentage... more
1961 Gibson EB-3 4-String Electric Bass Guitar in Cherry, with Hard Case (Used)
Birmingham, B1***, UNITED KINGDOM
£5500
- Frets: Good condition, no issues.
- Hardware: All original.
- Electronics: All original, no issues.
- Finish: This Bass Guitar is in Good condition with some wear through previous usage. There are some dents on the body as well as a crack near the jack input, which has been repaired.
- Made in USA, 1961.
* Hard Case included.
* Please note all of our USED / EX-DISPLAY Guitars & Basses are checked, tested,... more
1971 GIBSON EB 3 SLOTTED HEADSTOCK BASS CASE - made in USA
COLOGNE, GERMANY
€439
* 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 !!!
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... more
1971 GIBSON EB 3 SLOTTED HEADSTOCK BASS CASE - Made in USA
COLOGNE, GERMANY
£385
* CASE ONLY !
* interior has stains
* tolex has rips
* all latches are working fine
* worn but solid
* check all pics
... 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




















