[R-390] Shock mount update

[Paul Staupe]

I received four NOS Barry shockmounts from Surplus Sales of Nebraska for
$12 ea plus shipping and they arrived last week only a few days after I
ordered them.

Very nice condition, and the same size as my military mounts on the
CY-979A/URR cabinet although the shock assembly is in an enclosed metal
container rather than having the rubber dampener exposed which is probably
better.

Thanks to Steve Toth for helping me find these!

73,

Paul W0AD
Minneapolis