An electronic incident this afternoon

Midnite Mick

I go to fire up the system in the usual patient process that firing up tubes take. I turn on the source, then the pre (muted)...let them warm up for a bit and then fire up the monoblocks. As the monoblocks are starting up I start to hear some noise out of the speaker and them see one of the 6922 input tubes flash.:eek: :mad: I quickly turn the amps off followed by everything else.

After letting everything cool I then hook up the preamp to the Aragon amp and when I unmute the preamp there is noise coming out of the speakers. I have had noise come out of the speaker before when I needed to replace the preamp tubes. Obviously, the amp tubes and the preamp tubes wouldn't fail due to use at the same time.:mad:

Can a failure to an input tube on an amp cause damage upstream in the preamp? Could a problem preamp tube cause an amp input tube to fail? Could there be more problems than just the tubes?

Help....advice please.

Thanks,
Mike