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Re: P6131, T-coils and other probe stuff


 

Hi Mark,

Very nice to see you here! Your review article on sampling scopes is a true classic. I blame and thank you for the happy hours I've spent trying to chase down and then read, all the references you cite. :) I can't imagine the hours you spent amassing all of that information. Simply amazing.

Gabor is a dear friend, one of the last remaining links to that earlier generation, a rarity who knows that "Bartlett bisection" isn't a medical procedure.

Cheers
Tom

Sent from an iThing, so please forgive the typos and brevity

On Jan 31, 2021, at 16:29, "Mark Kahrs" <mark.kahrs@...> wrote:

I can't resist commenting about:

"If there is a network theorist left on your faculty (very rare these
days),"

In fact, it appears that circuit theory classes have nearly vanished. One
of the few I know of is taught by none other than Gabor Temes:



I find that some of the old classiques, such as Van Valkenburg or Kuo are
truly edifying, for example, conversion from one 2-port form to another.
Great stuff, highly recommended, , etc. Once you've seen transfer
matrices (ABCD), you'll never look at circuit analysis the same way again.
I'll stop before I wax even more ecstatically.




On Tue, Jan 19, 2021 at 5:19 PM Dennis Tillman W7pF <dennis@...>
wrote:

When it is safe come and stay with us as our guest. We have a large house
with plenty of bedrooms and lots of Tek toys to play with. Summertime we
have a small house by the beach on an island on the south (Puget) Sound and
there is a little guest house for you there as well.
Dennis

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Tom
Lee
Sent: Monday, January 18, 2021 9:44 PM
To: [email protected]
Subject: Re: [TekScopes] P6131, T-coils and other probe stuff

Hi Dennis,

Generous offer accepted. :) See you in Seattle one of these days, after
the Age of Covid passes!

-- Cheers,
Tom

--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
350 Jane Stanford Way
Stanford University
Stanford, CA 94305-4070


On 1/18/2021 20:45, Dennis Tillman W7pF wrote:
Hi Tom,

<SNIP>
A colloquial version of the history was written up by Paul Rako and can
be found here:

whats-all-this-tcoil-stuff-anyhow

I have three comments:
1) This was a wonderful article with a very clear, easy to follow
explanation. The Spice models will allow us to experiment with the
underlying math without worrying about trying to understand the
mathematical equations that always put me to sleep).
2) The hat was not as good as the article :)
3) Next time you are in Seattle I'll take you shopping and make sure you
leave with a proper hat.

Dennis










--
Dennis Tillman W7pF
TekScopes Moderator








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