Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Thu Mar 28, 2024 8:39 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Sun Dec 14, 2008 7:11 pm 
Offline
Contributing Member
Contributing Member

Joined: Fri Feb 29, 2008 2:41 pm
Posts: 312
I've gotten to a wiring place that has me flummoxed; a Yamaha bass,
originally set up just like a jazz bass.

First mod: change 1st volume to switched pot, to put pickups in series.
Works fine.

2nd mod: repl. tone control w/EMG EXB expander, again works fine, BUT--I miss being able to roll off highs.

Where I'm trying to go, now: I'd like to use DPDT on/on/on mini switch, for pickup selection, in parallel mode, and replace the 2nd volume pot, the middle one, with a tone pot. The EXB stays, as it has for 20+ years, in my other 2 basses.

I'm unsure as to how to deal w/ the series-parallel & the pickup selector--which comes first, the chicken, or the egg, so to speak?
I've scoured the web until I can't see straight, and can't find a schematic or diagram that helps. I'm
missing something basic and stupid, I think.

So, wiring gurus, this supplicant awaits...

_________________
https://soundcloud.com/jeffreylsuits/he ... -runnin-13


Top
 Profile  
 
PostPosted: Mon Dec 15, 2008 8:31 am 
Offline
Koa
Koa
User avatar

Joined: Mon Mar 26, 2007 6:42 am
Posts: 564
Location: United States
First name: Stephen
Last Name: Ziegenfuss
City: Jackson
State: MI
Zip/Postal Code: 49203
Country: USA
Focus: Build
Status: Semi-pro
Jeff,

I am not sure that I can help much but if I understand you correctly you want to have a DPDT switch that:
-activates neck pickup alone
-activates both bridge and neck
-activates bridge pickup alone

This would take place in the standard jazz wiring scheme of parallel pickup orientation...

In addition to this you have a single volume pot with with a push/pull action to control series/ parallel pickup orientation as well as a single tone control with EMG expander...

Then you have an additional volume pot that you want to lose for the sake of another tone control...which would leave you with one system volume regardless of the selection of your pickups...

if this is right, I will gladly take a stab at looking what form this may take. From experience, I do recommend only having one volume with a series/ parallel configuration, only because in series configuration it becomes superfluous...

Stephen

_________________
www.ziegenfussguitars.com


Top
 Profile  
 
 Post subject: Figgered it out...
PostPosted: Tue Dec 16, 2008 12:49 pm 
Offline
Contributing Member
Contributing Member

Joined: Fri Feb 29, 2008 2:41 pm
Posts: 312
The light went on, when I read that the switch was "interrupting"--okay, send the ground of one PU through the switch, one side goes to ground, other goes to hot lead of the other PU, which is wired into the switch in the same way, except that it's the hot lead that's interrupted in its path. The only caveat, is that there is one position on the PU selector that is OFF, when the bass is in series. NBD

_________________
https://soundcloud.com/jeffreylsuits/he ... -runnin-13


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 13 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com