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[Amps] Questions about Amps/Tubes/Design

Subject: [Amps] Questions about Amps/Tubes/Design
From: Lee Buller <>
Date: Sat, 15 Mar 2008 08:46:05 -0700 (PDT)
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I am looking for a second amplifier.  I have some questions....

1.  Why are there very few AL-82 amps for sale on the used market?  Either they 
are turkeys or great amps.  I think they might be a great amp.  2 x 3-500Z is 
pretty simple.

2.  Amp Supply - are they any good and what is the pit falls with these amps.  
Seem to be straight forward design.

3.  I get a little concerned about amps that use "ceramic" tubes.  My 
experience has been with "glass" tubes like the 3-500Z.  I get a little 
concerned as to the availability to some of these tubes.  I know that some 
manufacturers have gotten on the Russian tube band wagon and then the source 
seems to dry up.  I am concerned about the cost of re-tubing...the life of 
these tubes (could be years or decades I am sure) and what the deal is with the 
Russian tube vs Eimac thing is all about.  Why is there such a move to these 
types of tubes?

I am just doing some research and asking questions.

Lee - K0WA

In our day and age it seems that Common Sense is in short supply.  If you don't 
have any Common Sense - get some Common Sense and use it.  If you can't find 
any Common Sense, ask for help from somebody who has some Common Sense.  Is 
Common Sense divine?
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