MF 10 wiring problems

I ordered a service manual from Jensales for the Massey 10 and of coarse it doesn't have a wiring diagram. So I took some pictures and wrote some notes and maybe someone here can help me out.
Battery side of coil to amp meter and amp meter to I post on switch HOT
S post on switch to activate post on solenoid HOT when key turned to start as it should be.
B on switch goes to B+ on regulator-rectifier which is HOT when key is in run position.
R on switch goes to middle of the 3 prong plug going to stator that plugs into the ssi which is also key HOT
When I unplug the connector from the regulator which is red wire B on switch and goes to B+ on regulator is key HOT.
When the key is on it causes B+ and A to be hot. A___ A____ This is the way the plug in on the regulator.

B+____
The picture of the back of the switch the A post is not used. Hopefully someone can give me some answers on this. There are no markings on the switch so I don't know weather or not it is correct for the tractor or not. Where can I get the correct original switch? Thanks

How do I get my pictures to download. Thanks

Here is the factory MF 10 Operators Manual wiring diagram for my 1975 MF10 tractor. Says it applies to 12G models too....
Maybe a litte late but you might see this and it will help...
I've had to replace the module for no spark.