Hi all problem solved it was a shorted cap across the modulation transformer.Thanks for all the help
DE N8OKR
Steve,
FB, you had the problem correctly, as a shorted cap across the mod xfmr. I never worked on a Viking 2, so I was just guessing as to the problem.
I figure we now know his kids probably were shouting into the mike. He's lucky the mod xfmr wasn't damaged.
Fred