Twin Tube Classic clicking? That's not right, is it?

What's up? Bought a used Twin Tube Classic, and I've got two questions:

One, when you change 'channels' on it (from rhythm to lead and vice versa) you can hear your foot touching the switch amplified pretty well. Sounds basically like microphonic feedback. If you use your hand and wiggle the switch, you can hear that too. There's a little click when you actually change channels, and it's my understanding that there shouldn't be any noise at all. Am I wrong? Is this normal??

Second, there seems to be quite a volume difference in the two channels. I realize it's lead, so it should be punchier/bolder/dirtier, but is it really that much louder?

Thanks!
 
Re: Twin Tube Classic clicking? That's not right, is it?

Sounds like a bad tube.

Thank you, that was my initial assessment as well. If that is the problem, how much does Duncan charge to change the tubes? Anyone know? I know you're technically supposed to send it in to get serviced, so I figure I might have to do that.
 
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