8 Apr
2005
8 Apr
'05
10:20 a.m.
Subject: Re: Oscilloscope question
From: David Holland <dholland at woh.rr.com>
I don't claim to be a EE, but FWIW...
I am but, that means little. I actually troubleshoot stuff,
in the practical world doing is the important part. Experience
doing is extremely useful.
I believe that's correct. My (old) B&K was
targeted for TV repairmain,
so its rating is a mere 10Mhz. (Analog TV is spec'd at a 4Mhz
bandwidth)
My everyday bench scope is a B&K 20mhz dual trace as it's fairly
small and warms up fast. I have no hesitation to use it for logic
in the 20+ mhz range, however I understand how it behaves and
what I'm seeing as a result. If I realy need to see more I have
"big guns" for for the task but rarely use them. I do more with a
VOM and cheap logic probe before I resort to scopes and logic
analysers.
Allison