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Sci.Electronics.Basics -> turn your expensive oscilloscope into a $5 clock
There are 43 messages in this thread.
You are currently looking at messages 40 to 43.
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Author: MikeDate: 00:56 07-11-07
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Rocky wrote:
> On Nov 5, 7:54 pm, "Joel Koltner" <JKolstad71HatesS...@yahoo.com>
> wrote:
>> "HardySpicer" <gyansor...@gmail.com> wrote in message
>>
>> news:1194225262.821402.175060@z24g2000prh.googlegroups.com...
>>
>>> Can you go the other way and turn a $5 clock into a scope!
>> No, although we might be able to turn a $5 garage sale TV set into a scope :-)
>> (Not a very *good* scope, mind you...)
>
> Isn't that how they make multi-channel, multi-gigahertz digital
> sampling scopes? (More or less)
> Some high-speed ADCs, a bit of logic and a display.... :)
>
That’s exactly how they do it. Start with four DC to 20GHz preamps,
split the output of each preamp to four 12.5GS/s ADCs each with a phase
shifted clock and connect each ADC to a demultiplexer driving wide
slower memory. While you are at it, take a split off your preamps and
send it to your trigger comparator chip. (When you’re at Radio Shack, be
sure to ask for the premium trigger chip). Now you just have to read
back the acquisition memory, convert it to a raster image and send it to
your $5 garage sale TV. Voila, you have a 20GHz, 50GS/s digital scope.
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Author: Rene TschaggelarDate: 07:00 08-11-07
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Author: David M. PalmerDate: 18:52 10-11-07
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In article <5p43seFpef83U1@mid.individual.net>, Don Lancaster
<don@tinaja.com> wrote:
> John Larkin wrote:
> > On Fri, 2 Nov 2007 16:07:58 +0100, "BrunoG"
> > <noreply@micro-examples.com> wrote:
> >
> >
> >>Hi,
> >>
> >>Here is my suggestion to turn your oscilloscope into a clock with a PIC a 4
> >>resistors :
>
>>http://www.micro-examples.com/public/microex-navig/doc/082-pic-oscillo-clock
> >>
> >>I'm opened to your destructive comments :)
> >>
> >>Bruno
> >>
> >
> >
> > Our expensive scopes already have time-of-day clocks.
> >
> > John
> >
> Can't you just tie a long rope on the oscilloscope and make a pendulum
> out of it?
Or knock on the door of the building supervisor and say "I will give
you this expensive oscilloscope if you tell me what time it is."
--
David M. Palmer dmpalmer@email.com (formerly @clark.net, @ematic.com)
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