Aerial mast base

[Mike K]

Originally Posted by Bruce MacMillan

They are made by Canadian Marconi. The bases are stamped "Marconi" with a C/|\ and the sides are marked "made in Canada". Most have dates codes of July 1941 to October 1941. They have that spray on grey coating that is beginning to flake off.

OK .. yes the grey coating is there in lieu of the metal cage or shield that is normally used in many radios. Isn't it called a Faraday shield or something ... it prevents the stray capacity field from affecting other components in the immediate vicinity... coupling .

The British 22 and 62 sets has the same coating on the tubes... it tends to flake off .
Mike

Sounds like the signals forum is happening !