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Need Guild B301/302 Part!

Discussion in 'Hardware, Setup & Repair [BG]' started by groucho, Dec 29, 2005.

  1. groucho


    Sep 28, 2005
    Ringwood NJ
    Thanks for reading -
    I am working over a luv-a-ly B301 I got on Ebay
    (including a phantom coil/no hum mod) but
    It is missing the knurled adjuster that is the
    "third point" in the 3 point bridge system.
    I figure somebody here must have one in a
    bucket o' parts from repairs and mods...

    If you do, or know somebody, I will buy it $$
  2. Sorry I can't help. I'm in a similar position...
    just bought a B-301 but one of the string saddle adjusting screws has broken, another has been replaced with 'an almost but not quite' part :bawl:
    so I'm looking for parts too.
  3. groucho


    Sep 28, 2005
    Ringwood NJ
    Damn...There's gotta be a bunch of music/repair
    shops all over the known world, that have these
    parts in a slush fund of saved stuff from all the Guilds
    that came in over the years for "bridge upgrades".
    I am going to write Guild but I fully expect they
    have not a clue and no parts after all this time.

    I know a machinist I can go to and get a Gibson
    one modified to work, but it's gonna be $$$$
    for one-off work. You may be able to adapt saddles
    and screws from a Gibson bridge :confused:

    Still a great bass tho ' eh mate?

    You should consider the "no hum" mod - made mine
    sound tremendous, and dead quiet to boot!
  4. A fab little bass indeed.

    'No hum mod'? tell me more... :eyebrow:
  5. groucho


    Sep 28, 2005
    Ringwood NJ
    I hate single coil hum...The tone, as fab
    as it is, was not worth that damn hum!
    And no mere shielding gets rid of it - nothing
    short of mu metal or other mag field deflecting
    stuff encapsulating the coil can stop it.
    (yes, shielding is great and stops lots of things
    noisewise and should always be done)
    I knew Alembic did stuff with phantom coils
    to cancel out the noise, so I worked up a ckt
    for the Guild to do the same thing - I installed
    the raw coil from a disassembled P90 guitar
    pickup (cheap, and nicely small/shallow) you take
    off everything - all metal/magnets screws,and
    just use the bobbin coil wrapped in copper foil.
    I wanted a design that was minimally invasive
    no battery door in the back, no massive enlarging
    of the control cavity. So that meant a single 9v
    battery and a small ckt board. I routered a small
    cavity about an inch away from the Guild pickup
    towards the neck well under the guard about a
    half inch deep. The coil fits nicely and feeds the
    2 input FET preamp, one input is the Guild pickup
    the other is the dummy (phantom) coil. the
    two signals get summed and balanced to cancel
    the hum part of the signal from the guild (which
    is the only thing in the signal from the dummy
    coil) that signal goes to a bipolar transistor
    setup as an emitter follower to give you a nice
    low output impedance. There are MANY ways
    to execute such a ckt to be sure :)
    Then - replace the pots with 25k pots and you
    are good to go.

    You can always use a coil directly under the Guild
    pickup (would be the ideal location) if you prefer
    to router down and then rework the supports for
    the guild single coil over it. I also took the Guild
    pickup out of the cover, and wrapped it in copper
    foil to get the best noise reduction. I dremelled
    the edges of the bobbin(CAREFULLY and just a lil
    bit) to account for the foil and not to have to
    force the cover on over it!

    To tell the truth, it was this - or just router the
    crap outta the thing and put in a Music Man
    Stingray - style pickup :bassist:

    But I figured it was best for posterity to keep it

    Oh, the other thing that should be done - unless
    you put in a battery hatch in the back - is
    to replace the pickguard woodscrews with brass
    inserts and 4-40 machine screws! The mahogany
    of the Guild is soft and after a few removals of the
    guard the woodscrews start to get pretty loose.
    I can take the guard on and off indefinitely now
    with no issues :hyper:
  6. Cheers for that Groucho!
    and thanx for the pointer on the p/guard screws.
    Have done anything to improve the slight neck diving issue?
    I thought i might have a closer look at some of the solutions for the ASAT at vintage bass.
  7. groucho


    Sep 28, 2005
    Ringwood NJ
    sengamc you're welcome bro :cool:
    The only thing about the screws for the guard
    is to be totally meticulous when drilling the
    holes for the inserts :eek: Or you will have
    misery! I can post the source for them again
    if you are interested - super cheap place online :hyper:

    As to neck dive, The only thing I have seen is that
    dorky strap (on the horn) button extender - but
    people say it does work... You could add weight
    to the ass - end of the B301 to balance it I would
    think :confused:

    I use a reeelly wide strap and am a pretty big guy
    so it has not posed a problem for me.
  8. groucho


    Sep 28, 2005
    Ringwood NJ
    You could put Hipshot Ultralite tuning
    keys on it - may help :D