to straighten things out a bit, this is what John has been using through the years:
-Around '72/'73 he used an Rickenbacker, but couldn't
get a usable sound from that bass
-So during approx. mid '73 he bought 2 almost identical
sunburst Precision basses, a '67 and a '68
one of those got strung with Flatwounds and the other with
stainless steel roundwounds from the brand Rotosound, this
set up has been used throughout his whole career as his main
axes.
-Around '75 he stripped of the sunburst laquer and gave the
bodies an oil treatment, and as from then they where both natural
-Towards the Wembley '86 concerts he got the '68 Precision re-finished
-The last time he was seen with his (still natural looking) '67 Precision was in the video from the song The Miracle
in a black colour and also had the hardware goldplated
Now we go back in time take a look at his backup basses:
-In '74 Queen did a performance on Top pop, during that mimed performance from the song Killer Queen John used a natural '74 Jazzbass with maple neck and pearl block inlays, but the sound of that bass didn't seem to work for John, so he hasn't used it anymore since then
-During the American tour in '76 he got his Sunburst Musicman
Pre-Ernie Ball Stingray with the radioknobs, he strung these with Rotosound flatwounds, he used it for some songs on A day at the races and also used it live during Earls court '77, and from that concert the bass solo during the song Liar you can hear very clear he uses flatwounds
-Then in '77 he got his fretless Precision with a fretless maple board, the colour was sunburst, which he used live for the song '39, and in the studio on several songs like: Melancholy blues, Bicycle race, Radio gaga, Show must go on and Slightly mad
-Somewhere between '78 and '79 the Fender custom shop gave him a '54 sunburst Precision, he didn't used it a lot, as far i know he only used it on the song Coming soon (with Rotosound swingbass)
-In 1980 he got a hold of his Kramer DMZ-4001 bass in natural finish, he used this bass for things like Play the game and Las palabras the amor
-Around '81 he got a Precision Special, this one has a maple neck and also features a 2-band E.Q., he ended up using this bass for Under pressure (live as well), on the studio version you can clearly hear the flatwound strings
-Between '83 and '84 John got a Precision Elite-1, this bass had a special electronic circuit and special P-bass pickups, John used it on: One vision, I want it all and Headlong, and most likely on Innuendo as well
-Around the same time he bought a Roger Giffin bass, this bass can be seen on these video clips: Princes Of The Universe, Breakthru, The Invisible Man and Scandal
-Then finally, being influenced by The Who's John Entwistle in '86 Deacon also got a Warwick Buzzard bass, he only used it for the video Friends will be friends and some mimed performances
The amplification:
*.... - '73: Orange
*'73 - '76: Hiwatt
*'76 - '80: Acoustic corp.
*'81 - '84: Sunn
*'86 - '91: SWR
That's all folks!