On 5/23/11 1:09 PM, Rob Jarratt wrote:
As a 465 owner
as well, I agree that it's one of the classic scopes.
I'll add that if you do get one, get the manual as well. Tek scope
manuals
are
wonderful and worth their weight in widgets.
However, there are places where a DSO is far more valuable. As an
example,
suppose you need to look at a 20 microsecond
string of pulses that are
triggered every 300 milliseconds. It'll be close to impossible to see
them
with
a regular analog scope, but a DSO will show them
nicely.
The guidance I have had is that for a PSU an analogue 'scope is fine. For
logic then a logic analyser is what you need. Are you talking about some
other category of hardware?
Keep in mind that a DSO is substantially a different instrument, not
simply a "more modern replacement for an analog oscilloscope". Many
people, some of whom really should know better, assume this because
that's the way things have generally worked with technology, with
digital stuff being perceived as "new" and anything analog perceived as
"old" or otherwise passe'. This is not completely so with DSOs. They
have significant limitations that one MUST be aware of in order to use
them effectively. If you don't know what you're doing with a DSO, it
will give you incorrect information.
That said, I strongly feel that any real electronics bench is
incomplete without BOTH an analog oscilloscope and a DSO.
-Dave
--
Dave McGuire
Port Charlotte, FL