Bob Pease andf friends discuss high frequency scope probes and high-speed measurement tips. Featuring Paul Rako, Paul Grohe, and Ken Price (Tektronix).
Wow, from 2004. In 2004 I left NSC after 14 years working as both a parametric and functional test engineer for a position at Intel. Bob Pease was already a legend. He was truly one of the legendary grey beards, one of those who stroked his get beard as he made magic happen.
Tip... If you need to set the compensation, and you lost the little plastic do-hicky that came with the probe, just take a toothpick and file its tip to the shape of a screwdriver. I've done this for adjusting trimmer caps in RF circuits. Hummm... I said "tip." The pun really wasn't planned.
Wrapping a scope probe lead around a ferrite toroid is inserting a common mode impedance into the measurement hence improving the common mode rejection of the amplifier. It only works if the ferrite still has a high permeability at the frequency you are trying to reject, so don't use a square loop or a low frequency ferrite.
24:20 That's the most beautiful prototype board I've ever seen. All my prototype boards look like ziptie hack jobs with solder and wires going everywhere. I learned alot from this video and love the berets!
You cannot use Murphy's law to avoid problems, Murphy's law is recursive, if you use it to predict a problem then that problem won't occur but something else will go wrong instead.
Hah! NEVER trust a 'scope that's wider or taller than it is deep! Them little electrons need space to limber up and get going on the staight and narrow! Just kidding....:)
i guess im asking the wrong place but does anyone know of a way to log back into an instagram account..? I was dumb lost the login password. I appreciate any tricks you can offer me!
@Gunner Jaxen i really appreciate your reply. I found the site through google and I'm in the hacking process atm. Looks like it's gonna take quite some time so I will get back to you later with my results.
By way of orientation, this episode seems to be from late 2004, judging by the dates on the webpages shown around 22:50. Bob Pease passed away in 2011, and there's an affectionate video "Remembering Bob Pease" here on YT: ua-cam.com/video/-E_zUJ-SKRE/v-deo.html
"You can't use a conductive screwdriver. (for adjusting scope probes)" Well, you can remove the screwdriver and THEN check the overshoot/undershoot and make progressively smaller adjustments until you get the probe dialed in; NOT THAT DIFFICULT.
@Cole VanD, Yeah, but I'll recommend you to watch South Park season 9 episode 8 "Two Days Before the Day After Tomorrow" if you're in for a laugh on unintentional penises.
Wow, from 2004. In 2004 I left NSC after 14 years working as both a parametric and functional test engineer for a position at Intel. Bob Pease was already a legend. He was truly one of the legendary grey beards, one of those who stroked his get beard as he made magic happen.
Tip... If you need to set the compensation, and you lost the little plastic do-hicky that came with the probe, just take a toothpick and file its tip to the shape of a screwdriver. I've done this for adjusting trimmer caps in RF circuits. Hummm... I said "tip." The pun really wasn't planned.
Clyde Wary I use one of those tiny flatheads that come with those cheap little eyeglass repair kits at the drugstore
@@dankleton You don't want to use a metal screwdriver because the big conductive mass changes the capacitance
Wrapping a scope probe lead around a ferrite toroid is inserting a common mode impedance into the measurement hence improving the common mode rejection of the amplifier. It only works if the ferrite still has a high permeability at the frequency you are trying to reject, so don't use a square loop or a low frequency ferrite.
24:20 That's the most beautiful prototype board I've ever seen. All my prototype boards look like ziptie hack jobs with solder and wires going everywhere. I learned alot from this video and love the berets!
You cannot use Murphy's law to avoid problems, Murphy's law is recursive, if you use it to predict a problem then that problem won't occur but something else will go wrong instead.
I like a lot this vídeo. Bob is the eletronic legend. I want to see more vídeo like this
God Bless You Bob!
if youre in Bowdens Circuits lab, youre probably here asking yourself, am i really going to watch this whole thing? no, no you won't
Too bad, it's a great show!
Bob Pease for President !
Those hats are so beautiful
I broke my HDD while scoping wit the cheap RIGOL probe... So 3:32 the statement is true!
Hah! NEVER trust a 'scope that's wider or taller than it is deep! Them little electrons need space to limber up and get going on the staight and narrow! Just kidding....:)
RIP Bob :*(
i guess im asking the wrong place but does anyone know of a way to log back into an instagram account..?
I was dumb lost the login password. I appreciate any tricks you can offer me!
@Ricardo Jordy instablaster =)
@Gunner Jaxen i really appreciate your reply. I found the site through google and I'm in the hacking process atm.
Looks like it's gonna take quite some time so I will get back to you later with my results.
@Gunner Jaxen It did the trick and I actually got access to my account again. I am so happy!
Thanks so much you saved my ass !
@Ricardo Jordy Glad I could help =)
By way of orientation, this episode seems to be from late 2004, judging by the dates on the webpages shown around 22:50. Bob Pease passed away in 2011, and there's an affectionate video "Remembering Bob Pease" here on YT: ua-cam.com/video/-E_zUJ-SKRE/v-deo.html
6:30 I use paper clips from Linda's desk.
Why do they wear those incredibly weird hats?
i have watched this movie clip more exicted than last episode of "game of thrones"
Oh, the memories...!
Six fans to cool off that oscilloscope beast !
"A good passive scope probe can be pushed up to 500MHz." Except that 8pF at the probe tip will have a reactance of -j40 ohms @ 500MHz.
3:57 Is the reflection from the bottom of the table made to look like a sine waveform, or is this a coincidence..?
Interesting!
Ken looked a little worried?
Excellent!! Only pros!
Never forget the Henry's!
Bob the guru forever!!
"You can't use a conductive screwdriver. (for adjusting scope probes)"
Well, you can remove the screwdriver and THEN check the overshoot/undershoot and make progressively smaller adjustments until you get the probe dialed in; NOT THAT DIFFICULT.
As Bob said, a few seconds later.
Obviously Bob never went in for Powerpoint.
what would be nice if they had actual circuits with these problems and use the instruments to show all these phenomena.............
Bob's face at 12:17
copyright 2004 shown at very end of video
We love ti
@Cole VanD, Yeah, but I'll recommend you to watch South Park season 9 episode 8 "Two Days Before the Day After Tomorrow" if you're in for a laugh on unintentional penises.
nice
I work with Ken :) nice guy...
$120 for two boards, are you crazy? perhaps you should start using oshpark
The audio is too distorted. I can not bear to listen to it.
Looks more like mid 2000s.
28:18
8 Ghz bandwith!? good lord :)
hahahaha