Reid, can you safely put 6500 vdc (loaded) on a 3x3 tube ?? ?What about IMD with that voltage ?? ?Most folks are getting 68% eff on the lower bands (160-30m)....with 4800-5500 vdc loaded...and a little less on 20-17-15m.? ?Typ they are driven with a 200 watt xcvr in most cases, but not always.?
That RF deck appears to be a Henry RF generator, modified with a roller coil and 2 x vac caps.?
The 3x3 will typ hi-pot test to 20 kv (anode to grid).?
Do you remember what was used for the tuned input ?? ?Was it a mess of bandswitched PI networks, or direct driven ???
