THE first KW amplifier (military applications) was buid by TELEFUNKEN in
1941. Designated as BF2000 waz delivering 1,7KW on 10.9MHz for their Long
Range Aviation services (mostly Zeppelins :)
This haz been folowed in 1943 by Blaupunckt und Krupp.
Sorry... do not know what tubes (if any) they used.
I hear that Mr. Tesla has worked a period of time for them :)
Alex
> -----Original Message-----
> From: amps-admin@contesting.com [mailto:amps-admin@contesting.com]On
> Behalf Of Gerald D'Entremont
> Sent: Wednesday, June 26, 2002 4:24 PM
> To: Bill Smith; amps@contesting.com
> Subject: Re: [Amps] Earliest Commercial Amateur Linear Amplifier
>
>
> Bill,
>
> I'll go out on the limb here and say one of the earliest "stand-alone"
> 'RF Power Amplifiers' might had to have been the Millen 90881.
> 812A good for 500w as advertised in the back of the '54 Handbook.
> The earliest 'full gallon' might had to have been the Johnson
> "Desk Kilowatt" 'introduced' in a double-page ad in Jan. '55 QST.
>
> 73, Gerald W5BA w5ba@compuserve.com
>
> ----- Original Message -----
> From: Bill Smith <ko4nrbs@yahoo.com>
> To: <amps@contesting.com>
> Sent: Wednesday, June 26, 2002 10:40 AM
> Subject: [Amps] Earliest Commercial Amateur Linear Amplifier
>
>
> >
> > Being somewhat of a history buff I was wondering if
> > anyone had a line on what the earliest Commercial
> > Amateur Linear Amplifier was?
> > 73,
> > Bill
> >
> > =====
> > Bill Smith KO4NR
> >
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