[ARC5] Scope Question

[Kenneth G. Gordon]

On 20 Mar 2018 at 12:16, Michael Hanz wrote:

> I've seen that procedural step sometimes used on the later solid state 
> scopes to reduce the chances that you will start a measurement with the 
> sensitivity switch set at, for example, .01v/CM, when you are about to 
> measure say 800v p-p.  Transistors don't like that. It's a last "do you 
> really want to do this?" check before you make the measurement.

Yes. That makes complete sense, but then why didn't the manual follow that with advice to 
1) set the vertical sensistivity to "such and such", then
2) set the input to AC or DC to take the measurement.

>  The 
> older tube input scopes are pretty immune to such errors.

Yes.

> Or, it may be a manual error, as you suggest.:-)

Yes. Well, I am also working on a couple of Tek scopes, a 2465B and a 2467B (which had 
been left out in the rain for at least a year before I got it), and I am finding periodic small 
errors in the documentation.

BTW, the 2467B works just fine after I let it dry out for a month or two. The 2465B doesn't 
"work" at all, but it appears that the trace-blanking is locked on permanently.

Ken W7EKB

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