[Amps] matching network

[Gary Schafer]

Should have left the 6146 and 6CL6 in there. They had a negative 
feedback circuit around all 3 stages to reduce IMD.

73
Gary  K4FMX

Ray Burke wrote:
> At one time, before the GPS satellites made them redundant, there was a
> string of Loran stations along the Atlantic coast of Canada.
>  
> The workhorse at these stations was a linear, using a pair of 4CX350's,
> built by Technical Material Corporation of Mamaroneck, NY and Ottawa,
> Canada.  The Loran is gone, but the linears are still around,
> beautifully-built units, good from 2-32mhz, ideal for ham use.
>  
> Well, not exactly.  These linears can be driven to full output with only
> a few watts of drive into the exciter stage (which uses a 6CL6 and a
> 6146).
>  
> So I removed the exciter stage, and converted the 4CX350's to grounded
> grid, reasoning that now the linear can be cathode-driven directly by my
> Yaesu FT-900, which has an automatic antenna tuner.
>  
> That's where I'm at, and my question for the experts is: what kind of
> matching network at the cathodes of the 4CX-350's is recommended??
>  
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