passive mid-cut for bass?

[flateric]

Here's what I want:
www.guitar-mod.com/rg_mods_faq.html
A passive mid-cut for my 5-string bass, I see Torres also do a similar unit, but they tend to be for guitar only, not bass. My bass needs a mid-scoop switch. I would like to have a toggle switch to bring in 2 depths of mid-cut, not a variable resistor, I understand its just an LCR circuit but what values for bass mid-cut? How is the torres and roth model wired?

[flateric]

i'm losing my memory!
guitarnuts2.proboards.com/index.cgi?action=display&board=wiring&thread=3983&page=1#35647
Just need to play around with frequencies to get good mid scoop for bass.
Now I have a small audio transformer (Mouser 42TM011) with primary 1.5k and secondary 0.5k, is this the same as an inductor? How many Henrys?

[reTrEaD]

Feb 8, 2012 6:17:48 GMT -5 flateric said:

Now I have a small audio transformer (Mouser 42TM011) with primary 1.5k and secondary 0.5k, is this the same as an inductor?

It's two inductors.

Feb 8, 2012 6:17:48 GMT -5 flateric said:

How many Henrys?

According to ChrisK in the "Inductors for Passive Guitars" thread (Reference Articles), 0.24H and 0.08H

But he assumes the impedance is based on inductive reactance at 1kHz. There might be more to it than that.

[flateric]

Just use the primary coil side. Same mouser mini unit used by others for this mod.
found some more useful torres stuff here:
www.jpbourgeois.org/guitar/microsbis.htm#Midrange%20Modification