[TR] Length of Stator Tube?

[Frank - Sandy Crowe]

OK, I can't find the info anywhere in my collection.  What is the length of
the 3/8" OD brake line used to make a stator tube on a TR3a ('59, TS55223L)
with two-piece steering shaft?  And what are the dimensions of the slot cut in
the end of the tube that engage into the turn signal assembly?  All info on
making one would be helpful.

Mine has been missing since I got the car ten years ago, and now that I have
the front apron off to replace the radiator, I decided to get the turn signals
back where they belong (as opposed to the current method, a switch on the dash
board.)

Thanks much

Frank