>
>Ronald Lumachi wrote:
>>
>> SELL: NIB (tested only) Eimac 3CX1200D7 (date code '97) complete with a
>> brand new 6.3VAC@25amp filament xmfr, teflon chimney, Eimac SK410 air
>> system socket, and a new HV 2amp+ parasitic plate choke. This tube used
>> exclusively in the Henry 3K Premier amplifier. Will coast at 2100W
>> output or will do 2500W with a high performance power supply. $400
>> shipped for the package. This tube is virtually indestructible and very
>> forgiving even when mistuned. Ron W2CQM New York City
>
>
>
>Any real advantage to running the 3cx1200D vs. the 3cx1200A???
>Comparing data on the Eimac page other than filament voltage difference
>the tubes are VERY similar. Looks like the D7 might be easier to
>drive.
not much if any. The advantage of the D7 is reduced feedback C. The Z7
is better yet.
> I leave my ICOM 756 at full output to drive my AL-1200 and think
>I could use even more drive with the A7 tube. Wonder if swapping the
>tubes would be worthwhile??? Thanks, Phil W2GE
>
- Rich..., 805.386.3734, www.vcnet.com/measures.
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