I am fabricating a couple little doodads for my van's cooling system.  Sounds
like a recipe for disaster, doesn't it?  Since the joints will be unstressed,
I intend to use SOFT, silver bearing solder.  Does anybody know what kind of
a fit, i.e., amount of gap, is needed in a socket to make a proper solder
joint?  The material is brass and the tubing OD is about 3/8" (10 mm to you
younger guys).

Thanks to one and all,

George