Bob Camp wrote: the story to remember that sort of detail. > > I've never seen any frequency vs temperature data on the "double oven" > 10811's that shows they are significantly better than a normal part. HP > apparently never published any data. They also never used the approach > again, despite it's being pretty cheap to build (added parts cost). > Looking > at the design, it likely isn't a very low gradient device...
The whole 10811 double oven effort was in the "expediency" category. It was done by people who knew little about oven design and didn't have time to learn. Out of curiosity I kept tabs on the design, and what I saw made me cringe. There was an absurd wrapping of coax and flex circuits to try to reduce conductive heat leaks. I guess they blundered their way to some kind of a design that worked good enough to ship product. It is not much of a proof or disproof of the 10811 double oven concept. As they say, it is what is it. Rick Karlquist N6RK _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
