5 X 5,
I wouldn't be too concerned about the stated output of the "Low, Medium and High" power settings as the "Advertised" output of these devices (as well as "Model Names" i.e. "Tornado 500, Hooker 250 or Volcano 10K) were very optimistic and quite the "Sales Gimmick". If the manufacturer calls it a 750, it must be capable of 750w output.
Your own real world testing would be the best to go by. Operating the amp into a dummy load at each power level will tell you much more than a crumpled sales flyer that is 40 years old. As others have posted here, and in other threads, the transistors are only capable of so much output-under ideal conditions. Doing your best to create those ideal conditions (i.e. proper match to your transmitter, proper termination, at or less than maximum drive power per device, correct voltage for the device and enough current available at the correct voltage for the device, adequate cooling available to the device) will give you much more information than the "Overly Optimistic Sales Pitch".
I don't know anything about a Fatboy Straight 6 (except when I look in the mirror!
) but assuming that your "Palomar" will output 250pep at it's maximum setting, will the Fatboy take that much drive? I would start at the lowest setting on the "Palomar" and work from there. The same rules for maximum output apply to the Fatboy "the transistors are only capable of so much output-under ideal conditions.
In my feeble mind, input drive power used should be limited to the maximum tolerated by the next "stage". Example-No more out of the "Palomar" than the "Fatboy" can take.
Good luck. Please post your results.
73's
David
