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I know it's not Tektronix but ...

David C. Partridge Member Profile All Messages By This Member #88141 <> Regards, David Partridge
Dennis Tillman W7pF Member Profile All Messages By This Member #88156 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! toggle quoted message Show quoted text -----Original Message----- From: David C. Partridge, Sent: Monday, February 25, 2013 1:47 AM < own> Regards, David Partridge
Cliff White All Messages By This Member #88157 开云体育 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: toggle quoted message Show quoted text 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 Regards, David Partridge ------------------------------------ Yahoo! Groups Links <> To visit your group on the web, go to: <> Your email settings: Individual Email \| Traditional <> To change settings online go to: (Yahoo! ID required) <> To change settings via email: TekScopes-digest@... TekScopes-fullfeatured@... <> To unsubscribe from this group, send an email to: TekScopes-unsubscribe@... <> Your use of Yahoo! Groups is subject to:
Dennis Tillman W7pF Member Profile All Messages By This Member #88158 开云体育 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@... toggle quoted message Show quoted text 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 ? ? Regards, David Partridge
Paul Amaranth All Messages By This Member #88159 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. toggle quoted message Show quoted text 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 < own> < own < own> > Regards, David Partridge -- Paul Amaranth, GCIH \| Rochester MI, USA Aurora Group, Inc. \| Security, Systems & Software paul@... \| Unix & Windows

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