[Amps] Use of Regulated DC on Power Tubes Filaments

[DRS6@pge.com (Smith, Dave)]

Friends,

What are the pro's / con's regarding using regulated DC to supply filament
voltage for a PA in cathode driven, AB2 configuration? I need 7.5 volts @
51.5 amps and have available a HP regulated supply that is 0 - 10VDC @ 100
amps. I would isolate the both neg and pos sides from chassis ground.

Thanks for your input.

Dave / W6TE