[AMPS] fil info

[Steve Thompson]

>Thesedays we (me and the team of  technicians at work) always turn 
>back the filament power, to where cathode emission is starting to 
>slump, and then increase a slight amount. This gives a longer 
>lifetime, especially important for tubes that cost $20 to 200 
>thousand dollars a pop.


At that price, I hope you'd get a decent bang :-)

Steve



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