On 10/8/2012 10:27 AM, Craig Sawyers wrote:
No. The spring loaded pin is to automatically change the range to x10 on
scopes that have this feature.
Craig
<snip>
Hello, Craig and the group--
Craig's (and others') correction is absolutely, well, correct<g>.
I apologize for any confusion that I may have introduced.
I was thinking of the business end of a probe and the
coil-spring-like fitting that slides over the probe's metal
ground barrel that's close to the probe tip.
See the "sprung earth tip" here...
...For a drawing of what I had in mind.
73--
Brad AA1IP
**
> >Hello, Mike--
>
> That's indeed its purpose. IIRC, a length of wire presents approximately
20
> nanohenries per inch of length. Introducing extra inductance between the
> probe and the circuit under test can seriously distort waveshapes. Also,
the
> loop formed by the probe ground wire can pick up extraneous noise
radiated
> by nearby circuits.
>
> 73--
>
> Brad AA1IP
>
>
>
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