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Old December 26th 09, 04:27 PM posted to rec.radio.amateur.boatanchors,rec.antiques.radio+phono
Scott Dorsey Scott Dorsey is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 774
Default 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."