There's been a running thread on eevblog on the JW pulse generator. I
haven't been following it, but it's probably in there.
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On Mon, Feb 25, 2013 at 09:03:09AM -0800, Dennis Tillman wrote:
What is the test fixture the Jim Williams Pulse Generator is mounted in? It
looks like they created a special high bandwidth version of Jim Williams
pulse generator to test. I would be interested in seeing what they did to
get a 30pSec/Volt response from the pulse generator. Hand selected
transistors would be mandatory. What kind did they use? What does the layout
look like to preserve the rising edge?
Dennis
From: Cliff White, Sent: Monday, February 25, 2013 8:55 AM
He did later on in the forums after the article. It ended up at 30ps/volt.
Yes, that's pico-seconds!
Respectfully,
Cliff White, W5CNW
w5cnw@...
On 02/25/2013 10:53 AM, Dennis Tillman wrote:
Quite impressive BUT towards the end of the article he says:
"I was able to use this machine to test the famed Jim Williams Pulse
generator and record once-and-for-all it's rise time."
but he never says what the risetime is that he measured! Really dumb!
-----Original Message-----
From: David C. Partridge, Sent: Monday, February 25, 2013 1:47 AM
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Regards,
David Partridge
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Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows
