[Amps] Alpha 77D likes to remain on

["Gary Smith" <Gary@ka1j.com>]

Recently this 77D converted to SX wants to remain on regardless of 
the selection on the power switch. I found if I bump the back of the 
chassis it resolves the problem so whatever it is, it's jarred loose 
via a small tap to the chassis. I'm thinking one of the HV relays has 
some pitting on the contacts and is staying closed once engaged.

Any alternate possibilities and if I'm right, how to best dress the 
contacts so they won't stick again?

73,

Gary
KA1J
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