Jim C,
No, my list has remained steady for a couple years. Although there are a couple more Commandos that lurk in pieces in the shop, otherwise I'm completely out of space.
Sorry I can't help with the K-model, I've never owned one of those, but I believe the early K front ends are quite similar to the R-series airhead.
LAB,
I never realized that the zeners on a Mk3 charging system were fed with alternating current. I looked at the diagram and read the description, which (at least to me) contradicts their diagram. I had to go down to the shop today and lift the seat on my '75 and trace the wires to realize that the diagram is correct and the description in the manual seems a bit off.
calbigbird,
The mk3 assimilator has two AC legs connected to the assimilator, so rather than two connections to the key switch you need two connections to the stator, one Green/Yellow and one White/Green.
Can any of our resident electrical experts explain to me why this change was made on the half wave rectified charging system?