> If I go ahead and increase drive to maximum of 100 watts as per
instructions
> then output increases to 700 to 900 watts - but - grid current rises to as
> much as 500 ma with plate current at 600 to 700 ma.
You can tell it is not an AL80A as that can't measure more than 300mA.
>
> No load voltage is 2700 - under full load it drops to 2200 or so.
No. Wrong. It should be around 3000 on load for a 3-500Z. You won't get high
output at reasonable grid current with 2200V EHT. Check the mains voltage is
OK. Check the amplifier design is correct. Maybe they meant 1kW input ?
Mike
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