On 22 Nov 2004 at 8:29, Brett gazdzinski wrote: > Hummmm, > How many 811a's in that amp? > > If 4, then I think the 811a has 65 watts of plate dissipation, 4x65=260. > Cut 260 watts in half for 130 watts of carrier output, but I doubt I > would > run them > that hard. The power supply likely wont take that much abuse, its > designed > for > ssb service, very low duty cycle! > > Figure maybe 100 watts out, but watch things closely.
25 watts out per 811A with 100 watts p.e.p. - heck you can do better than that woth sweep tubes. I am certain you can run 811As at double that power in AM linear service with impunity. 50 watts AM output is surely not going to hurt a good ole 811A, LOL! I have done similar with several 4X 811A linear amps and they didn't even glow red, let alone pop a tube! With forced air cooling they should be fine. Am I crazy?
