<<<2 X 3-500 amps with 3KV and up on the plates are becoming less
common...>>>
Hmm, not so sure about that one--besides Ten Tec, Ameritron and QRO both
make 2 x 3-500 amps. Unless you are splitting hairs in the sense that they
may not have 3 KV _under load_. (I think my centurion is 2.6 kv under
load). Also lotsa SB220s, L4Bs and others still out there. I think Amp
Supply even made one (and only one) that used three 3-500s but I don't think
it ever got into production. Of course I may be showing my bias (heh heh)
towards the old glass envelopes, no delay cathode driven, grounded grids,
low IMD, no-need-for-grid-protection-circuitry amps.
Rob/K5UJ
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