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Stereo T-40?!

J Posega

Cat Dad and Dingwall Enthusiast
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Jul 16, 2005
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Portland, OR
The idea just hit me like a ton of bricks... since I removed the phase switch on my T-40, I moved the output to the top of the bass. I'm relatively interested in giving this a try, wiring it up KIND OF like a Ric and running the neck and bridge pickups to seperate amps.

Can anyone help me out with a schematic for how I could wire this up so that, without taking away any of the functionality of the tone controls? I just glanced at a Ric-O-Sound diagram, and apparently that uses a stereo output jack... I'd like to simplify things by using two seperate mono jacks, but will I need a switch to select between:

A) Both pickups to one jack
and
B)Each pickup to seperate jack ???

Or can it simply be wired that by plugging into ONLY jack X OR Y, I get both pickups to one amp, but plugging into BOTH jack X AND Y, I get the two pickups to seperate outputs?

Is there a simpler way? Maybe hardwire them to seperate outs, and just get an AB/CD pedal with a blend?
 
You can do this pretty easily with two mono jacks but they'll need to be switching types, where the "switch" terminal shorts to the "tip". The common choice for this would be the Invalid Link Removed - Basically you run pickup A to the "tip" connector of jack A and also to the "switch" connector of jack B, and pickup B runs to "tip" of jack B and the "switch" connector of jack A. When a plug is inserted in either A or B, the tip carries the relevant pickup signal to the amp, and the other pickup is connected through the switch in the other jack. If there is a plug in both jacks, each jack gets its own signal. On 4-knob basses like the T-40 you can do this pretty easily. It gets hairier with a Jazz Bass unless you use a stereo pot for the tone control...

PM me if you need a wiring diagram.

\m/
 
You can do this pretty easily with two mono jacks but they'll need to be switching types, where the "switch" terminal shorts to the "tip". The common choice for this would be the Invalid Link Removed - Basically you run pickup A to the "tip" connector of jack A and also to the "switch" connector of jack B, and pickup B runs to "tip" of jack B and the "switch" connector of jack A. When a plug is inserted in either A or B, the tip carries the relevant pickup signal to the amp, and the other pickup is connected through the switch in the other jack. If there is a plug in both jacks, each jack gets its own signal. On 4-knob basses like the T-40 you can do this pretty easily. It gets hairier with a Jazz Bass unless you use a stereo pot for the tone control...

PM me if you need a wiring diagram.

\m/

Yes, this is the best way to wire a bass with two outputs.
No switching is necessary, as it is done at the jacks themselves based on how many cables are plugged in.
 
Beautiful! Thanks for the quick response. Doesn't sound like it's too hard to draw up on my own, but I'll try and do it when I have some free time and send you what I have drawn up, maybe next week sometime... can't wait to get my project T-40 out of my mom's house now!
 
Here's my stereo T-40 with Curtis Novak Neck PU. Removed both switches. Love it!

P1160122.jpg
 
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