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On Mon, 17 Nov 2003 13:55:19 +0000, Paul Burridge
wrote: On Sun, 16 Nov 2003 22:33:38 GMT, (J M Noeding) wrote: Maybe you have a different model. Mine purports to cover up to 360Mhz, but there is *no way* AFAICS that the thing would be capable of anything remotely close to that upper range limit, on cursory inspection of the internals. I'm glad I went for the wholesale re-build but still find it hopelessly impractical to use on minature, in-circuit components. Can only agree very much to your comment "there is *no way* AFAICS that the thing would be capable of anything remotely close to that upper range limit", whether the upper limit is 280 or 360MHz becomes less important when it actually don't operate properly above 140MHz But I don't see that an instrument intended to cover down to 500kHz could have practical variable capacitor for UHF, so somewhere should be another construction. Perhaps an idea to look at DL7QY microwave dipmeter.... I might consider copying some of his details to a web page 73 Jan-Martin LA8AK Instruments: http://home.online.no/~la8ak/m1.htm (and -.m2.htm) Homebrew instruments: http://home.online.no/~la8ak/m3.htm Homebrew audio instruments: http://home.online.no/~la8ak/m31.htm -- remove ,xnd to reply (Spam precaution!) |
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