Posted by metasonix [ 69.111.133.1 ] on July 10, 2004 at 03:44:24:
In Reply to: Re: tube rectifiers posted by manualblock on July 09, 2004 at 21:44:58:
>Cathode stripping, how would you know it's happening?
You wouldn't---it damages the coating and shortens the tube's life.
It leaves no other traces.
>Then only if the B+ is high, say if you are using 211 triodes or somesuch why is it an issue?
Only applies to oxide cathodes or oxide-coated filaments. Power tubes with thoriated filaments (like most 211s) are not harmed by it.
>the case of the surge circuit wouldn't you want all switches and/or relays out of the circuit
I don't agree in the case of COMMERCIAL amps. They have to be reliable and usable. You can wire your own amp however you wish. And accept any reliability issues that result.
>whatever happened to that nice PP 2a3 amp J. Eckland built?
He's still got the thing and it does sounds great--but not as good as the KT88 amp!
>When are we going to hear from Natalie Stone
Beats me--ask the publisher.
[ Tubes Forum ] [ Help ]