>> ? Filament-current is a mere 75A. Dahl makes a compact transformer.
>> Tube handles are mighty nice. 8171s are typically a good buy in the
>> surplus market. They can be had for under 6-cents per watt.
>OK ... I looked at my Varian catalog and the 103 Amps was for the "J"
>version of the 4CX5000/4CX1000. Still, the requirements for filament
>power, air socket and air flow are a bit stiff for the amateur builder.
? Due to its 7" cooler, the blower requirements for the 8171 in amateur
service are virtually a piece of cake. The chassis space is the same
as for a 4-1000A/8166.
>........ What do you
>think ... 9 KW with 7 KV on the anode and drive by a FT-1000 <G>?
? As you like it. . With 2.5kVDC, c. 1.5kW. . The FT-1000 provides
plenty of grid-drive.
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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