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#10
December 26th 09, 05:27 PM
posted to rec.radio.amateur.boatanchors,rec.antiques.radio+phono
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Performance of Heathkit SB-610
David wrote:
On Dec 25, 10:04=A0am, (Scott Dorsey) wrote: David wrote: So here=3D92s my question: Building the pre-amp was a fun and useful project, but is my scope=3D92s performance without the pre-amp typical? No. =A0Something is wrong. =A0With the gain control set halfway, S9 signa= ls go way over the top of the CRT with my Collins R-390. =A0This is using log scale, too. If your problem is the same in both linear and log, that's one thing to rule out. The SB-610, which is crude oscilloscope, doesn't have a log scale. Are you confusing it with the SB-620 pan adapter ("Scanalyzer") which presents a frequency domain view of signals? I was indeed. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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