Wiring/Component Question

[meycom]

I have a US Masters 5 string bass that has an interesting component
in the wiring(pic's). It almost looks like a pickup and I'm looking into the way
it is wired. Is it possible it is something like a signal booster(transformer)??
It is all passive.
Any ideas ???

Jeff

 

[CharlieB]

Have no idea what that is.... but just for grins, maybe its an inductor? I know that Bill Lawrence made some bass worthy Q-Filters (inductors) that when dialed in thru a tone control, replacing the capacitor, would scoop out the mids, rather than cut highs.

 

[Paulabass]

Dummy coil for noise reduction?

 

[meycom]

Thanks for the feedback guys, still trying to wrap my head around the wiring. There are two
SPDT switches there, that I thought were coil splitters. Nope.

 

[Slater]

Dummy coil for noise reduction?

That would be my guess, but I really don’t know…

 

[Arie X]

and that thing was just stuffed in there?

 

[Crater]

Looks like someone used half of a p-bass pickup (and coil form) to make a "varitone" inductor.

 

[IamBF]

I like your profile pic!

 

[meycom]

I like your profile pic!

I used to play with a guy from Crystal Lake!!

 

[meycom]

and that thing was just stuffed in there?

Yep, just loose in there?? I'm working on a wiring schematic for it..

 

[meycom]

Looks like someone used half of a p-bass pickup (and coil form) to make a "varitone" inductor.

Yes, that's exactly what it looks like!! A P-Bass pickup.

 

[Versatek6]

It's a sealed circuit, epoxied into a P-bass pickup casing.
Here is how USM described the circuit:

As I understand, it is a notch filter, which narrows the badwidth of wide-range pickups. It works like a parametric EQ, but in a fixed frequency range. I believe the EQ Type switch has a middle position that bypasses the circuit, making the tone knob a regular treble roll-off.

 

[Arie X]

huh, i actually have a coil winder and can wind small choke coils, and etc.. with it. maybe someday i'll experiment.

 

[Killed_by_Death]

I'm sure the question we're all thinking now is:

Does it perform as advertised?