>
>Am new to list.
>
>Just acquired an Ameritron AL-80 (grounded grid - single 3-500Z) - not the
>AL-80A or B.
>
>If tune up as per instructions with drive to produce 350ma of plate current
>then have output of only around 300 or 400 watts. Drive power to produce
>that level of plate current is approx 50-60 watts.
>
>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.
>
>No load voltage is 2700 - under full load it drops to 2200 or so.
>
>It does not do above consistently. On 80M increasing drive power from 60 to
>100 W may have no affect on output and grid and plate current.
>
? better read the Eimac specs on drive level. 100w is way too much.
The max. plate/anode current is rated at 400mA.
- Rich..., 805.386.3734, www.vcnet.com/measures.
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