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2 volume 2 tone impossibility?

ShonenCello

ShonenCello

Sep 21, 2011
319
131
#1
A technician who is doing work on my EB-0 project has just called me up to tell me that 2 volumes and 2 tones are not possible.

He says turning down one vol will always shut down both pickups. And that this configuration is never done.

Using this attached diagram and alligator clips I had this working a few days ago. So I'm really suspicious of what he's telling me.

Can anyone give their opinion on this? I need some facts before I go back to him and I start demanding things.

thanks.

Just in case your wondering, I've added a second pickup.
 

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#2
2 volumes with 1 tone is done all the time. Look up the standard Jazz wiring for reference. Your guy hasn't done enough research.
 
#10
ShonenCello said:
A technician who is doing work on my EB-0 project has just called me up to tell me that 2 volumes and 2 tones are not possible.

He says turning down one vol will always shut down both pickups. And that this configuration is never done.

Using this attached diagram and alligator clips I had this working a few days ago. So I'm really suspicious of what he's telling me.

Can anyone give their opinion on this? I need some facts before I go back to him and I start demanding things.

thanks.

Just in case your wondering, I've added a second pickup.
Click to expand...

Seriously?

My highly modded Jaguar SS has VT/VT, my highly modded Flying V has VT/VT, my factory Gretsch has VT/VT and my factory Guild has VT/VT.

The electronics on every one of them seemingly work properly. I can adjust the volume and tone on each pickup without affecting the other one. I suggest you find somebody that actually knows what they're doing with your bass. I know I wouldn't trust him with one of mine.
 
#11
fjadams said:
Seriously?

My highly modded Jaguar SS has VT/VT, my highly modded Flying V has VT/VT, my factory Gretsch has VT/VT and my factory Guild has VT/VT.

The electronics on every one of them seemingly work properly. I can adjust the volume and tone on each pickup without affecting the other one. I suggest you find somebody that actually knows what they're doing with your bass. I know I wouldn't trust him with one of mine.
Click to expand...

Just got off the phone with him and gave him some of the arguments here and now he says it's OK come pick it up.

Thanks everyone. A little knowledge is a dangerous thing.
 
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#13
Here's how two volumes and two tones can work together.

RBX375subdude67V-T-V-T-iso.png


As line6man explained, if the wiper terminal is the input (it accepts the wire from the pickup) then the volume controls act independently.

Note the two resistors. If you include those two, your tone controls will only affect the pickup they're supposed to, but the bass won't be as loud and you'll have to turn up the gain a bit. If you don't include them, there will be no loss of output, but either tone control will affect both pickups.

Incidentally, I think you explained this trick to me as well, line6man.
 
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#15
Stealth said:
Here's how two volumes and two tones can work together.

RBX375subdude67V-T-V-T-iso.png


As line6man explained, if the wiper terminal is the input (it accepts the wire from the pickup) then the volume controls act independently.

Note the two resistors. If you include those two, your tone controls will only affect the pickup they're supposed to, but the bass won't be as loud and you'll have to turn up the gain a bit. If you don't include them, there will be no loss of output, but either tone control will affect both pickups.

Incidentally, I think you explained this trick to me as well, line6man.
Click to expand...


What if you replaced those resistors with diodes? Wouldn't that keep the tone controls separate?
 
#18
A Blend with a Master Volume

The Blend will act like the two Volumes getting a balance how you want it
and then volume can drop it down (tho most seem to leave it on 10 there might not have a volume pot, so many use the volume on the AMP)
 
#19
Stealth said:
Here's how two volumes and two tones can work together.

RBX375subdude67V-T-V-T-iso.png


As line6man explained, if the wiper terminal is the input (it accepts the wire from the pickup) then the volume controls act independently.

Note the two resistors. If you include those two, your tone controls will only affect the pickup they're supposed to, but the bass won't be as loud and you'll have to turn up the gain a bit. If you don't include them, there will be no loss of output, but either tone control will affect both pickups.

Incidentally, I think you explained this trick to me as well, line6man.
Click to expand...

But you will want to use the wiper terminals are outputs, when using resistors. The resistors prevent the volume pots from dropping the output impedance to zero, so you still have the option to use the wiper terminals as outputs to avoid the variable impedance load on the pickups from the pots.
 

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