[ARC5] Plate impedance...

Kenneth G. Gordon kgordon2006 at verizon.net
Mon Dec 15 01:00:38 EST 2008


On 14 Dec 2008 at 21:45, w7qho wrote:

> On Dec 14, 2008, at 8:59:32 PM, "Kenneth G. Gordon" 
> <kgordon2006 at verizon.net> wrote:
>     That is for DC. For AC, one formula used is plate voltage divided
>     by twice the plate current.
>
> I stand corrected.  From he 1989 RAHB, the approximations are:
>  Rl = Vp/KIp where 
> K= 1.3 for Class A
> K= 1.5 for Class AB
> K= 1.57 for Class B
> K= 2 for Class C

Thanks, Dennis. I needed those values. I'll put them in my 
files. Much appreciated.

Ken Gordon W7EKB


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