<snip>
>> 3 x 800s = 2400 watts of diss. 3 X 4-400s = 1200 watts of Pdiss. I'm not
>> a math major, but I fail to see how 1200 = 2400??????
> At 1500 out a 4-400 key down is almost yellow, I tried one at 5KV once which
> was enough.I cant imagine any surviving long that way.
"In the old days" we used to run 4-400's (and others) with lots of
color. I don't recall any lifetime problems. OTOH those amps were in a
perpetual state of change.
73
Roger (K8RI)
> I also watched a pair of 4X1's at 10KV, that was another scary sight from a
> rather well known Northeast DXer and contester.
>
> Then there was the 4 x 8877's into a 3el 75M rotary from another guy.
>
> Carl
>
>
>>
>> --Shane
>> KD6VXI
>>
>>
>>
>>
>> On Tue, 23 Nov 2010 07:58:41 -0800, DJ7WW<dj7ww@t-online.de> wrote:
>>
>>> Only if the tube specifications are far exceeded.
>>> 3x 4-400 will do the same then.
>>>
>>> 73
>>> Peter
>>>
>>> -----Original Message-----
>>> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
>>> Behalf Of Carl
>>>
>>> I just serviced a LK-800C and discovered 6-32 steel hardware in the RF
>>> path
>>> on both sides of the plate blocking cap. One side was darkened overall
>>> and
>>> the other was black where the threads entered the cap, it looked like
>>> rust
>>> under magnification. This amp will do an easy 3500-4000W + with
>>> sufficient
>>> drive.
>>>
>>> _______________________________________________
>>> Amps mailing list
>>> Amps@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>>
>> --
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