[AMRadio] GG 813 Linear in GE Ham News


Mike Dorworth,K4XM k4xm at arczip.com
Thu Sep 29 17:01:31 EDT 2005


Actually, only one half of plate dissipation. The ICAS dissipation for a
single 813 is 125 watts, CCS is 100 watts.. This is the maximum carrier for
reasonable tube life. Efficiency is low without modulation., increases
during modulation. Limiting factor is one half total dissipation.Sorry but
the facts are so. Mike


----- Original Message ----- 
From: "W5OMR/Geoff" <w5omr at satx.rr.com>
To: "Discussion of AM Radio" <amradio at mailman.qth.net>
Sent: Thursday, September 29, 2005 6:03 AM
Subject: Re: [AMRadio] GG 813 Linear in GE Ham News


> Gary Schafer wrote:
>
> > A pair of 813s in GG are only good for 150 watts carrier out on AM.
> >
> > 73
> > Gary  K4FMX
> >
>
> I'm not trying to start anything here, Gary, but that statement seems to
> be in stark contrast to what you said, yesterday...
>
> > With an AM linear the efficiency at carrier must be / will be exactly
> > one half what it is at PEP. Provided it is tuned properly.
> >
> > 73
> > Gary  K4FMX
>
>
> What would the efficiency be of an AM Linear at carrier.
>
> (or maybe I'm not reading this correctly, because I've yet to have
> coffee this morning, and I -know- I probably should'n't be posting
> messages in this state... ;-))
>
> --
> 73 = Best Regards,
> -Geoff/W5OMR
>
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