[Amps] Tube question

[Mike Brown]

I have an Ameritron AL-811 that the time to put in new tubes has come. I 
have read of some that have switched to 572B's in place of the 811A's. Could 
AL-811 owners email me off the reflector to give me their opinions. Good 
move? Not worth the money? I'd like to hear from other AL-811 owners. I've 
tried an Amp Supply LK 500, but too much amp for the neighborhood.

Please reply direct to mike at k9mi.com   Thanks....

73, Mike