[Amps] Output Impedance 4-572B's in Parallel

[Phil Clements]

Subject: Re: [Amps] Output Impedance 4-572B's in Parallel


> Plate volts divided by plate amps.
>
> 73
> Gary  K4FMX
>
> Tim Long wrote:
> > Sorry if this has been asked & answered before; just
searched the
> > archives and couldn't find it.
> >
> > What is the load impedance of four 572B's in parallel,
Taylor's not
> > Svetlana's, as in a Clipperton-L?  Can't find the data.
Thanks in
> > advance.
> >

I assume from the original question that the desired class
of operation is AB-2, or B.
If that is the case, the formula is:


Anode Voltage
_____________

Anode Amps X 1.8

(Several values for the "K" factor have been published, but
this is the one Eimac uses)

It makes no difference what tube or tubes you are using;
just how you plan to run them.

(((73)))
Phil, K5PC