The Last Bass Outpost

Gear Discussion Forums => Gibson Basses => Topic started by: ilan on May 23, 2022, 10:31:59 AM

Title: EB-0 wiring question
Post by: ilan on May 23, 2022, 10:31:59 AM
What does the .01 µF capacitor do?

(https://www.flyguitars.com/graphics/EB0circuitIllustration3.gif)
Title: Re: EB-0 wiring question
Post by: Dave W on May 23, 2022, 11:09:42 AM
It shunts all the highs to ground.

Didn't we discuss this before? You were going to remove it from your EB-0L after I mentioned it, then you found out it had already been removed. Or maybe I'm thinking of someone else.
Title: Re: EB-0 wiring question
Post by: ilan on May 23, 2022, 04:23:08 PM
It shunts all the highs to ground.

Didn't we discuss this before? You were going to remove it from your EB-0L after I mentioned it, then you found out it had already been removed. Or maybe I'm thinking of someone else.

Actually twice! And I forgot about both.

The first time was in 2018 (http://bassoutpost.com/index.php?topic=11144.msg190717#msg190717) - that was before I even bought the EB-0L, I just made a suggestion to use a treble-bleed cap in EB's a-la Rickenbacker.

The best easy mod to the stock wiring is to remove the .010 cap which bleeds most of the treble to ground. It doesn't stop the distortion but it helps the frequency response.

The next year I bought the bass, and on March 2019 you wrote this (http://bassoutpost.com/index.php?topic=11274.msg192902#msg192902) -

Check the wiring and note the second illustration here (http://www.flyguitars.com/gibson/bass/EB0_circuit.php). I remove the .01 cap, it shunts highs to ground.

Can't attribute this to long Covid as I never had the virus. I guess I'm just getting old.

BTW that Gibson has become my go-to bass. At home this is the bass I'll play about 80% of the time.
Title: Re: EB-0 wiring question
Post by: amptech on May 24, 2022, 09:54:23 PM
It's perfectly simple:
Rickenbacker: remove stuff that cuts bass
Gibson: remove stuff that cuts treble
Fender: remove
Title: Re: EB-0 wiring question
Post by: morrow on May 25, 2022, 05:30:30 AM
I’m trying to deaden the strings on a Dano DC  bass so I’m trying to put as much time on that as possible . For the stuff I have to do they sound great with dead roundwound strings . I have a Longhorn with twenty four year old strings , I want the DC to sound like that .
However my favourite bass to play is that little Gibson DC Tribute thing . And I’ve been keeping fresh rounds on it ( fresh for me is changing strings after nine or ten months) I’ve been buying Gibson BriteWires for it . I really love that little Gibson .
Title: Re: EB-0 wiring question
Post by: uwe on May 25, 2022, 08:45:15 AM
"I have a Longhorn with twenty four year old strings , I want the DC to sound like that."

(https://boxspring-kiki.de/wp-content/uploads/Milben-im-Bett-bek%C3%A4mpfen.jpg)

(https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTe_d1nCM15C_c5Q9vrE0X43nwSwyE0aCaB1AC1izwGY7KeaiBQY1fZbTFkeIa75ncI2PM&usqp=CAU)
Title: Re: EB-0 wiring question
Post by: Pilgrim on May 25, 2022, 09:30:32 AM
I’m trying to deaden the strings on a Dano DC  bass so I’m trying to put as much time on that as possible . For the stuff I have to do they sound great with dead roundwound strings . I have a Longhorn with twenty four year old strings , I want the DC to sound like that .
However my favourite bass to play is that little Gibson DC Tribute thing . And I’ve been keeping fresh rounds on it ( fresh for me is changing strings after nine or ten months) I’ve been buying Gibson BriteWires for it . I really love that little Gibson .

You'll get there. You'd like my 1963 Precision with the strings installed in 1972, 50 years ago.
Title: Re: EB-0 wiring question
Post by: ilan on May 25, 2022, 12:28:43 PM
You'd like my 1963 Precision with the strings installed in 1972, 50 years ago.

But first get your Tetanus Toxoid injection  ;)
Title: Re: EB-0 wiring question
Post by: Pilgrim on May 25, 2022, 12:30:31 PM
But first get your Tetanus Toxoid injection  ;)

Those are all GOOD germs!  I made them myownself!  :P
Title: Re: EB-0 wiring question
Post by: morrow on May 25, 2022, 12:43:53 PM
Exactly .
Title: Re: EB-0 wiring question
Post by: ilan on May 25, 2022, 12:50:10 PM
Those are all GOOD germs!

It's bacteria.
Title: Re: EB-0 wiring question
Post by: Pilgrim on May 25, 2022, 02:32:42 PM
It's bacteria.

And as we persons of science know, there are both beneficial bacteria and pathogenic bacteria. I assure you that the collection on my strings has been carefully curated to consist of only beneficial bacteria.   8)
Title: Re: EB-0 wiring question
Post by: Dave W on May 26, 2022, 12:03:57 AM
It's perfectly simple:
Rickenbacker: remove stuff that cuts bass
Gibson: remove stuff that cuts treble
Fender: remove

(https://i.imgur.com/sVBBANy.gif)
Title: Re: EB-0 wiring question
Post by: ilan on May 26, 2022, 11:16:43 AM
It shunts all the highs to ground.

So what does the tone control do?
Title: Re: EB-0 wiring question
Post by: Pilgrim on May 26, 2022, 11:43:29 AM
So what does the tone control do?

I thought about that when i filled the hole in my '64 EB-0 with an appropriate mudbucker.  I decided a tone control had no reason to exist on an EB-0 with a mudbucker and Dimarzio Model 1....so I used both pot holes for separate volume controls.  Who needs to cut highs on either of those pickups???

Title: Re: EB-0 wiring question
Post by: Dave W on May 26, 2022, 09:00:06 PM
So what does the tone control do?

Not much.  :mrgreen:

I should have said most highs, not all.
Title: Re: EB-0 wiring question
Post by: ilan on May 27, 2022, 07:17:56 AM
I've played it cap-less with the mudbucker both stock and split, and I have no idea what highs you are all talking about. Now that I have the OBL pickup under the sidewinder cover I have highs (and all the lows I could ever want). All that wonderful potential and resonance you hear from the bass when you play it unplugged, that were suffocated by that monstrous mud and its little capacitor accomplice for 50 years, are now finally unlocked. If you could ask the bass, I'm sure it's very happy now.
Title: Re: EB-0 wiring question
Post by: Dave W on May 27, 2022, 10:52:04 PM
If it works for you, that's all that matters.
Title: Re: EB-0 wiring question
Post by: uwe on June 07, 2022, 05:02:29 AM
So what does the tone control do?

That's a classic misnomer on EB-0s. It should be called 'mud duller'. Mind you, there are two kinds of mud: regular low-sparkle mud and dull mud.

In fact, de-capping the mud circuit releases more honky mids than treble. You'll be able to hear yourself better, but people still won't mistake you with Chris Squire or Geddy Lee.
Title: Re: EB-0 wiring question
Post by: uwe on June 07, 2022, 05:12:41 AM
Now that I have the OBL pickup under the sidewinder cover I have highs (and all the lows I could ever want).

Oh, we get the gist, Ilan ...

        s h i e l d   a n d   n o t   s e e n
(https://upload.wikimedia.org/wikipedia/en/thumb/5/5f/Israel_Security_Agency.svg/280px-Israel_Security_Agency.svg.png)
... right?  8)

(https://i.pinimg.com/originals/fa/2d/f6/fa2df6778e27ff084175e79b5e3514d0.gif)