Can you measure IMD? That would be the telling data.
WB2WIK/6
________________________________
From: amps-bounces@contesting.com on behalf of Hsu
Sent: Sun 7/19/2009 4:15 PM
To: gdaught6@stanford.edu
Cc: amps@contesting.com
Subject: Re: [Amps] Grounded Grid(Screen) 4CX250B power gain
Hi, George,
I just modyfy the Henry TEMPO 2001
convert the 3CX400A7 to 4CX250B in GG configation, tied the cathode and
G1(serial a 100ohm resistor) together.
I'll test it today.
73!Hsu
----- Original Message -----
From: <gdaught6@stanford.edu>
To: "Hsu" <hsu4qro@gmail.com>
Sent: Monday, July 20, 2009 5:26 AM
Subject: Re: [Amps] Grounded Grid(Screen) 4CX250B power gain
>> Nin hao George,
>> Have your built the amplifier like this GG configation?
>
> No, I haven't built one in GG. I always use "passive grid configuration",
> with a
> resistor driven by the exciter, and the grid just attached to the top of the
> resistor.
>
> 73,
>
> George T Daughters, K6GT
> CU in the California QSO Party (CQP)
> October 3-4, 2009
>
>
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