All Alloy Cup progress

[AllAlloyCup]

            Technical Query 

I am beginning the wiring on the Cup.
Although I have a later coil engine my chassis
No is fairly low 10xxx and would like to use the
Earlier Magneto switch panel.

It has an IGN post on the back of the panel
which I THINK in the OFF position actually “grounds”
The relevant part of the Magneto. Can someone confirm this point?

Should I therefore take a live feed from somewhere else and separately 
Switch the Power to the low tension of the coil?
This would make the OFF position of the switch redundant?

Also see the photo of my Cut Out which has two posts
To connect to D and A posts of the switch panel.
From looking at my photo, which post is A and which is D?

Also does anyone sell the flate plate fuses fitted
To the other posts within the cut out?

I’ve been granted permission to have my soldering iron
In the spare room as the garage is now too cold!

Merry Christmas to all the folks on the Forum

Bill G

Aka AllAlloyCup