[time-nuts] No 1 PPS output on a Tbolt
brooke at pacific.net
Fri Feb 12 16:46:51 UTC 2010
I have been studying digital scopes for some time and have the Rigol
DS1052E on the way.
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).
Bob Camp wrote:
> 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....
> 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
>> 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.
>> On 8 February 2010 15:15, Robert Darlington<rdarlington at 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.
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