Hi Bob:
I have been studying digital scopes for some time and have the Rigol
DS1052E on the way.
http://www.prc68.com/I/RigolDS1052E.shtml
Rigol may make the low end scopes that are sold by Agilent. This model
goes for a little over $400 and gets excellent reviews (links on the
above web page).
Have Fun,
Brooke Clarke
http://www.PRC68.com
Bob Camp wrote:
Hi
Of course the other option is to *finally* break down and buy a digital scope.
They've been out there for> 20 years now.
Yes, I did indeed cross over to the dark side last week....
Bob
On Feb 12, 2010, at 7:24 AM, Peter Vince wrote:
Hi Robert,
I put a dual-colour (red-green) LED in a BNC plug for just this
sort of purpose. No series resistor - the 50-ohm source impedance
limits the current nicely. With dual-colour, I can see both positive
and negative pulses. 100ms pulses are perfect, 10ms OK, 1ms are very
dim, but there is no chance of seeing the 10us pulses from the
Thunderbolt.
As others have said, I set the (analogue Tek 2445) 'scope to
10us/div, 2 volt/div, 50 ohms, DC positive edge trigger, and waggle
the trigger level. The display is dim, but visible. A slightly
slower scan would narrow and brighten the pulse on a tired tube.
TTFN,
Peter
On 8 February 2010 15:15, Robert Darlington<rdarling...@gmail.com> wrote:
Try hooking the output to an LED. It's very difficult for me to see the
pulse on my analog scopes but there is no arguing with the blinking light.
-Bob
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