Oh wait, it doesn't look like that! I have the Europa electronics (AE-2?). Is it simply a matter of switching the wires out from the old q-switch in the brown box labeled 3023?

Ok, seems like it was a useless file, I uploaded i my previous post. Hope this is better

OK, a 7211 is the correct part number. I've confirmed we've never documented a 3-position Q switch on a Distillate or Europa, but after talking to dad he said he's happy to do it. Will not be able to book time for it for 3-4 weeks though - his plate is pretty full and even nudging in something small wouldn't be fair to those who have been waiting patiently for his current projects.  
 
I will keep you posted and you're welcome to tickle this thread in a month if you haven't heard back from me.

BTW, that is a super custom Essence with an Ash body. Cool!

So could this be done on my MK Signature bass?? Looking at it I guess it could, I reckon I could source the parts from Maplin in the UK or some other reputable components supplier.
2 capacitors, 2 resistors and a switch.. looks pretty doable.
Is the polarity on the capacitors important(+ at board end, - at switch or vice versa)?

Terry my advice about upgrading your signature is... go for it. Even with the filter off it seems to have added a little crispness to the sound of the bass without losing he ability to warm up the sound as previously. I have some now for my Black Europa with signature electronics however I think I may initially change the bridge pickup switch as on that bass at the moment I rarely use Q on the neck pickup.  
Jazzyvee

Mica..which is the spec for the 3 way switch  
DPDT On-Off On
OR
DPDT On-On-On
 
Already have got the caps and resistors.

Terry,
According to the C&K spec sheet the 7211 is DP On-On-On.
 
Keith

Iv'e just changed both my 2 way to 3 way switches. I have two gigs this weekend so a great time to try them out. Probably won't need them during any of the gigs but soundcheck is a good time to have a listen at stage volume.
 
Jazzyvee

Thanks Keith for that

what type of capacitors are they(polyester, electrolytic, etc) I have some but would like to know the exact spec?
They look like electrolytic

Hi Mica
 
Has your dad had time to look at it?
 
Thanks
 
Kaspar

Hi Mica,
 I'm giving a bump to this thread its been a while. I still have an interest in perhaps swapping out my 2 way Q to a 3 way Q switch for my 85 Distillate. You indicated that the existing Mod is not available for the Distillate only for Basses with the AE-1 filter board.
Please excuse my lack of understanding but:
1- Is there a Mod that can create a 3 way Q for Distillates?
2- As a curiosity if not what are the differences between the boards? I was under the impression aside from the Series Line the Pre Amp sections of all the Filter based Basses were the same.
 
Again thank you for your patience with my insatiable curiosity.  
 
Peace,
Pete

There's really three families of electronics:
 
1. Series I/II
2. Distllate (includes Spoiler, Elan, Europa)
3. Activator (includes Signature, Essence)
 
So there's 3-position for the Series I and the Activator family, but not yet for the Distillate family. I'll have to check with dad to see what his schedule is like.

I would definitely be interested in an upgrade kit for my Essence with Europa electronics.  
Slawie