« previous next »
Pages: [1] 2 3 4   Go Down

Author Topic: Modding Gibson LPB-1  (Read 11730 times)

pjm

  • Full Member
  • ***
  • Posts: 103
  • Proud Boy Bass Player
    • View Profile
Modding Gibson LPB-1
« on: December 22, 2016, 05:53:35 AM »
I'm currently stripping all the black finish off and getting rid of the active Bartolini preamp and go passive, VTVT. It's has Tbird pickups. My guess is 4 x 500k pots and 2 x caps.
Logged

patman

  • Hero Member
  • *****
  • Posts: 1346
    • View Profile
Re: Modding Gibson LPB-1
« Reply #1 on: December 22, 2016, 06:07:54 AM »
what was wrong with the finish?
Logged

dadagoboi

  • Hero Member
  • *****
  • Posts: 4209
  • huh?...HUH?
    • View Profile
    • CATALDO BASSES
Re: Modding Gibson LPB-1
« Reply #2 on: December 22, 2016, 07:08:31 AM »
Quote from: pjm on December 22, 2016, 05:53:35 AM
I'm currently stripping all the black finish off and getting rid of the active Bartolini preamp and go passive, VTVT. It's has Tbird pickups. My guess is 4 x 500k pots and 2 x caps.

Tone pots for vintage TBird pickups are 250k. YMMV.
Logged

4stringer77

  • Hero Member
  • *****
  • Posts: 1899
    • View Profile
Re: Modding Gibson LPB-1
« Reply #3 on: December 22, 2016, 10:25:21 AM »
If he's keeping the pickups, they're TB+.
Logged
Contrary to what James Bond says, a good Gibson should be stirred, not shaken.

Dave W

  • Administrator
  • *****
  • Posts: 22241
  • Got time to breathe, got time for music
    • View Profile
Re: Modding Gibson LPB-1
« Reply #4 on: December 22, 2016, 11:46:13 AM »
Gibson's online diagrams for the modern passive LP Bass aren't schematics and don't show pot or capacitor values. Most post-1973 Les Paul guitars use 300K linear volume pots, which you can buy direct from the Gibson store and elsewhere.

According to Cadfael's wiring diagrams, the 1997-2006 passive LP Bass used 500K pots for all. Those used the same TB-Plus pckups as in your bass. But he shows the modern (1987 and later) T-Bird (also TB-Plus) as having 300K linear volume pots, and likewise with the recent passive LP Standard Oversized Bass. Caps are .047uF in all cases.
« Last Edit: December 22, 2016, 11:55:04 AM by Dave W »
Logged

ramone57

  • Hero Member
  • *****
  • Posts: 748
    • View Profile
Re: Modding Gibson LPB-1
« Reply #5 on: December 22, 2016, 12:03:18 PM »
I bought an LPB-1 (TB+ pups) for my son years ago and the preamp was shot, so we converted to passive, 2V2T.  iirc, we used 500k pots and .047 caps.  sounds as expected.
Logged

pjm

  • Full Member
  • ***
  • Posts: 103
  • Proud Boy Bass Player
    • View Profile
Re: Modding Gibson LPB-1
« Reply #6 on: December 22, 2016, 04:57:58 PM »
Do you guys think i should just keep the Bart pre? There's nothing wrong with it, just though I'd get more of a classic Gibby tone without it.



« Last Edit: December 22, 2016, 08:58:42 PM by pjm »
Logged

pjm

  • Full Member
  • ***
  • Posts: 103
  • Proud Boy Bass Player
    • View Profile
Re: Modding Gibson LPB-1
« Reply #7 on: December 22, 2016, 08:59:18 PM »
Stripping pic
Logged

Dave W

  • Administrator
  • *****
  • Posts: 22241
  • Got time to breathe, got time for music
    • View Profile
Re: Modding Gibson LPB-1
« Reply #8 on: December 22, 2016, 09:33:24 PM »
Quote from: pjm on December 22, 2016, 04:57:58 PM
Do you guys think i should just keep the Bart pre? There's nothing wrong with it, just though I'd get more of a classic Gibby tone without it.
...

Depends on what you mean by classic Gibby tone. Passive, with an all mahogany body, it ought to sound a lot like a modern T-Bird. I did play a passive NOS '92 in a store back in the late '90s but I can''t remember what it sounded like. OTOH the Bart pre version sonds fine to me, if I had one I wouldn't remove it. YYMV of course.
Logged

Basvarken

  • Global Moderator
  • *****
  • Posts: 6877
  • hobby luthier. gibson bass nerd
    • View Profile
    • www.enkoo.nl
Re: Modding Gibson LPB-1
« Reply #9 on: December 23, 2016, 08:44:49 AM »
Classic Gibby Tone is most present in black gloss finished basses.
Too bad...   :mrgreen: :toast:
Logged

Rob

  • Hero Member
  • *****
  • Posts: 1817
    • View Profile
Re: Modding Gibson LPB-1
« Reply #10 on: December 23, 2016, 02:40:50 PM »
Quote from: Basvarken on December 23, 2016, 08:44:49 AM
Classic Gibby Tone is most present in black gloss finished basses.
Too bad...   :mrgreen: :toast:
:rimshot:
Logged

pjm

  • Full Member
  • ***
  • Posts: 103
  • Proud Boy Bass Player
    • View Profile
Re: Modding Gibson LPB-1
« Reply #11 on: December 27, 2016, 02:03:44 AM »
First coat of Danish oil


Hope to get it to this..
Logged

Basvarken

  • Global Moderator
  • *****
  • Posts: 6877
  • hobby luthier. gibson bass nerd
    • View Profile
    • www.enkoo.nl
Re: Modding Gibson LPB-1
« Reply #12 on: December 27, 2016, 07:43:01 AM »
You'll need some yellow to achieve that.
Logged

gearHed289

  • Hero Member
  • *****
  • Posts: 4434
    • View Profile
    • Book of faces...
Re: Modding Gibson LPB-1
« Reply #13 on: December 28, 2016, 09:28:57 AM »
Quote from: pjm on December 22, 2016, 04:57:58 PM
Do you guys think i should just keep the Bart pre? There's nothing wrong with it, just though I'd get more of a classic Gibby tone without it.

I got rid of mine years ago during my "no more active stuff" phase. I like it without, but there was nothing really wrong "with" either. Bright and snarly. 
Logged

slinkp

  • Hero Member
  • *****
  • Posts: 1361
    • View Profile
    • slinkp home page
Re: Modding Gibson LPB-1
« Reply #14 on: December 28, 2016, 10:57:26 AM »
Out of curiosity, is there a setting on the pre that sounds close to the passive tone?
Logged
Basses: Gibson lpb-1, Gibson dc jr tribute, Greco thunderbird, Danelectro dc, Ibanez blazer.  Amps: genz benz shuttle 6.0, EA CXL110, EA CXL112, Spark 40.  Guitars: Danelectro 59XT, rebuilt cheap LP copy
Pages: [1] 2 3 4   Go Up
« previous next »