In article
,
N2EY wrote:

The Model J-37 is the same key without
a shorting switch. ?

They're similar, but not the same key.

Jim-

These keys were provided by several different makers. If you find a
J-37 and a J-38 made by same company, there is a chance they are
identical except the switch-related hardware is missing from the J-37.

That may not be true for all makers, but it was in one case I'm familiar
with. It appeared that the switch hardware could be transferred from
the J-38 to the J-37 without any modifications.

Fred
K4DII