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previous: Bruce q{they could run 19 or 20 tubes on ... -- 3/20/2000 8:41 PM view thread

Re: Tube Output Ratings

3/20/2000 11:07 PM
MBSetzer
Re: Tube Output Ratings
Check out page 580 and 584 in RDH4.  
 
About tube matching:  
 
"All valves intended for matching should be operated for at least 50 hours under similar conditions to those under which the valves are intended to be operated in the amplifier."  
 
Also check out page 94 about emission testers:  
 
"Because of the very high value of the emission current . . . emission test is a damaging test and should be performed as seldom as possible . . . A safe value generally accepted for the duration of the emission test is 3 seconds."  
 
Mike