Where to get a stacked pot with dual-C50K and G100K (like in a Boss MT-2)?

[kothoma]

Does anybody know where to source a stacked/concentric pot with one dual C50K and one G100K (or maybe a B100K)?
So essentially this is three pots for two knobs.
(The Boss MT-2 uses this for semi-parametric mids.)

[Guitafuzz]

  Alpha Taiwan

http://www.taiwanalpha.com.tw/english2014/p_e_056.htm

You can fin the model number here and after go to Mouser or Smallbear Maybe.

[kothoma]

Thanks!

So the Alpha RD923DF would be a model series like that.
Hm, Mouser (or any other major seller I checked) doesn't seem to carry any of these. 

Maybe Boss has them custom made anyway?

[Guitafuzz]

  Yes could be custom made.

  What are the values That you need.

[Guitafuzz]

  For the Dual -C50k you can use this http://www.smallbearelec.com/servlet/Detail?no=1032 with a 50k resistor in parallel to achieve aprox the 50k that you need and for the "G" taper i don`t know. 

  So the idea is to split the pot in two separate pots.

[kothoma]

Well, I have a nice supply of dual-C50Ks... But an additional concentric pot would really save space, esp. it there are more of them.