[Amps] 813's.. Parasitic suppressor's

Carl km1h at jeremy.mv.com
Mon Apr 12 11:23:51 PDT 2010


Swamped grid input driven by a Viking II CDC.  Tubes are submounted with the 
shells grounded to the chassis. No neutralizing necessary but I do use plate 
and grid parasitic suppressors.

Carl
KM1H



----- Original Message ----- 
From: "Vic K2VCO" <vic at rakefet.com>
To: "Carl" <km1h at jeremy.mv.com>
Cc: <amps at contesting.com>
Sent: Monday, April 12, 2010 2:01 PM
Subject: Re: [Amps] 813's.. Parasitic suppressor's


> On 4/12/2010 9:51 AM, Carl wrote:
>
>> Ive been running 4 of them [813's] that way for
>> several years Class C AM 160-10M
>
> Is it a traditional grid-driven circuit with a link-coupled parallel-tuned 
> input?  Or do you use something else?
>
> I'm interested in the input circuit, and in how to get a decent SWR, since 
> I will be driving the class-C amplifier with a modern solid-state 
> transceiver.
> -- 
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco/ 



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