In a message dated 7/16/2006 9:43:53 P.M. Eastern Standard Time,
w8ji@w8ji.com writes:
I've never seen a pair of 3-500Z's driven with 100 watts
produce 1500W PEP ***on an accurate power meter*** with only
3000V on the anode.
It takes about 3400 volts or more to get 1500W out with 100W
drive.
This isn't to say a pair of 3-500Z at 3000V won't show 1500W
PEP on some wattmeters. I've just never seen that power on
accurate meters.
All of my SB220's, even with the grids grounded, only make
around 1200-1300 with100W drive on a known accuracy meter.
I don't like to "poo-poo" anyone, so I won't. BUT...I will agree 100000%
with the above statements. There may only be a couple people that have owned
more Sb-220's than I have over the past few years. It has ALWAYS in every
case been my findings as stated above!! I have added this to one of my "facts
of life". I asked one poster earlier to tell me what his "key down" reading
was on his watt meter at full load with 100 watts. I'd say anything over 1300
watts output on an Sb-220 would have required MORE than 100 watts drive!!
Lou
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