I always considered them a half an 813. I ran 4 of them on 80 meters in the
60's. I didn't have anything to measure power with then but they ran an easy
kw in. very nice tube.
73
Gary K4FMX
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
> On Behalf Of Fuqua, Bill L
> Sent: Thursday, March 31, 2011 7:16 PM
> To: Carl; ka4inm@tampabay.rr.com; amps
> Subject: Re: [Amps] 813 Amplifier Article
>
> You know, I can't tell if an 814 is half a 813 or twice a 807. But they
> are neat looking tubes. I have a few of those as well.
> 73
> Bill wa4lav
>
> ________________________________________
> From: amps-bounces@contesting.com [amps-bounces@contesting.com] On
> Behalf Of Carl [km1h@jeremy.mv.com]
> Sent: Thursday, March 31, 2011 10:33 AM
> To: ka4inm@tampabay.rr.com; amps
> Subject: Re: [Amps] 813 Amplifier Article
>
> ----- Original Message -----
> From: "Ron Youvan" <ka4inm@tampabay.rr.com>
> To: "amps" <amps@contesting.com>
> Sent: Thursday, March 31, 2011 8:57 AM
> Subject: Re: [Amps] 813 Amplifier Article
>
>
> > Fuqua, Bill L wrote:
> >
> >> I have thought of replacing the 813's with 4E27A's. Has anyone used
> >> 4E27A's in grounded grid.
> >> They are pentodes with 125 watts plate dissipation and wire the
> filaments
> >> in series since they are 5V.
> >> They should have a nice plate glow to them and go in the same socket.
> >
> > http://www.tubecollector.org/4e27.htm
> >
> > says the 4E27 has a 75 Watts plate dissipation.
> > ??? I believe the 4E27 is more rare than 813s.
> > --
> > Ron KA4INM - Endless Loop: n. see Loop, Endless.
>
>
> I notice 4E27A's being ignored on Fleabay and at hamfests. My only
> experience with them was a couple of 6M AM rigs I built to get some
> activity
> on the band. They sure did glow nice.
>
> The H&K 257B is a 4E27 clone.
>
> If you dont want bands above 20M a couple of 803's can really make some
> power and will take the same socket as the various Eimac 4- and 5-
> triodes
> and tetrodes.
>
> The 814/VT-154 is a scaled down 813 and generally ignored but 3-4 will
> be
> heard.
>
> Carl
> KM1H
>
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