[sdiy] Analysis of Dim D modes

[JH.]

Hi,

this is a question to those who plan to emulate the behaviour od a Dim D 
with my upcoming Subtle Chorus project.

As you all know, on a vintage Dim D you can get more than 4 modes by 
pressing several of the 4 pushbuttons at once.

I've analyzed the circuit, and found that there are exactly 6 diffenet modes 
(surprisingly few if you consider the possible combinations).

The results of my analysis are here:
http://www.jhaible.heim.at/subtle_chorus/dim_d_switches.pdf

Now, I don't expect a lot of people to have access to real, interlocking 
mechanical pushbuttons, and if you do, there's still the problem of exactly 
spaced, and possibly rectangular holes in a front panel.
So I would like to replace these pushbuttons with rotary switch: with 6 
positions, of course.

This means re-designing the LFO circuit (no problem), but it also means that 
it would be hard to connect 4 pushbuttons. (Well, maybe evan that would be 
possible with some diode logic - haven't thought this thru.)

So, is everybody fine with a 6-position switch?

And if so, please give some ideas in what order to place the 6 modes.

(If you're logged into the electro-music forum, you can even cast your vote 
here:
http://electro-music.com/forum/viewtopic.php?t=29103 )

JH.