[Moon-net] Info Needed on Tubes

[Doug Millar]

Hi,
         I have a couple pictures of the amplifier and can email them 
individually if anyone is interested.
                 Doug K6JEY




At 11:09 AM 1/1/2007, Jerry Kleker wrote:
>Hi Doug,
>
>I designed a cavity amplifier in 1962 that used a GL6942 (GE).
>It put out 1 KW at 1030 MHz at 10% duty cycle (for IFF). The
>power gain was about 10. The first amplifier used 3 adjustable
>cavities but the final design had fixed length cavities and
>was relatively compact.
>
>I had the machine shop make a second set of cavity parts so
>that I could try it on 1296 but the parts were lost about
>20 years ago. I believe that I still have a set of the drawings.
>
>I was concerned about cooling the tube with air on 1296 because
>the tube only had about 10 horizontal cooling fins.
>
>The design should work on 432 because the input and output
>cavities were 3/4 wave long. The G1/G2 cavity was 1/2 wave long
>but could be modified.
>
>Does anybody know if the amplifier showed up on the surplus
>market?
>
>73 and Happy New Year to all.
>
>Jerry    W7QX
>
>
>
>----- Original Message -----
>From: "Doug Millar" <dougnhelen at moonlink.net>
>To: <moon-net at list-serv.davidv.net>; <microwave at wa1mba.org>;
><sbms at ham-radio.com>; <microwave at qth.net>; <microwave at lists.valinet.com>;
><mailto:>
>Sent: Saturday, December 30, 2006 6:04 PM
>Subject: [Moon-net] Info Needed on Tubes
>
>
> >
> > Does anyone have info on the following tubes?
> > Y 867
> > 7169
> > GE 6942
> >
> > The 6942 is in a huge 432 cavity and the tube has horizontal fins.
> > The 7169 is new in the bag about 1962 vintage.
> > Doug K6JEY
> >
> >
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