[Amps] Sweep Tube Amps

[David C. Hallam]

First of all, don't tell me to get a real amplifier.  I have other 
"real" amps.

My question is: 3 sweep tube types are stated to be equivalent, 6JE6, 
6LQ6, and 6ML6.  Are they really interchangeable in a set, i.e., can I 
mix the 3 types in a set of 6?  The amp has no way to equalize the idle 
current.

I have built multi tube amps before, 4CX300A, but included separate bias 
adjustment pots for each tube.  I have no intention of building a sweep 
tube amp.

David
KW4DH

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