Forgot to say that in the example below I´m refering to GG
cathode driven.
SM2EKM
------------------------------------------------------------
No need for buffer stage. With 5-6 kV on 4-1000A it will put
2.5 to 3 kW without no problem. If more power is wanted just
add another 4-1000A and there will be another 3 dB of power.
It´s just messy and tricky to run a driver, I´ve tried it and
didn´ like it.
/ SM2EKM
PS: Best would probably be a dual 4-1000A driven by a 100 W
exciter, in this case no ALC over shot from exciter will cause
amp flattoping and splatter etc etc, there will be plenty of elbow
room inside the possible envelope.
--------------------------
-----Ursprungligt meddelande-----
Från: ToddRoberts2001@aol.com [SMTP:ToddRoberts2001@aol.com]
Skickat: den 27 april 2001 01:24
Till: amps@contesting.com
Ämne: [AMPS] Buffer/Driver Stage for 4-1000 Amp
I am planning to use one of those 90-100 watt solid-state rigs to drive
a
4-1000 amp project. From what I can gather it appears that to be able
to take
full advantage of an all grounded-grid/ cathode driven 4-1000 tube ,the
driver should be able to supply about 150-200 watts of drive. It would
seem
the best answer would be to build a buffer/driver stage using perhaps a
single or dual 811A tubes that could be driven with maybe 25-50 watts
and
deliver 100-200 watts of drive to the 4-1000. I was wondering if anyone
has
ever tried this or any suggestions? How about a pair of 811A's running
class
A driving the 4-1000 cathode? Thanks for any ideas. 73 Todd Roberts
WD4NGG .
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