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From John with permission, personal friend of Dennis...

Just got a call from Dennis. He sounds very good.

On Saturday, Feb 10, they put in only one stent, the second being unnecessary.
The one stent went in high up in the aorta rather than one in each in branch.
I remind you that I still am 4 years away from my MD, so please excuse me from
any medical errors.

Dennis was very impressed with not only the size of the room used in the
procedure, but the number of machines there. Especially impressive was the
computer controlled (of course) X-ray machine that took pictures from different
angles and, of course, gave immediate results.

The doctors told him he was the ideal patient, totally immobile while under
total sedation during the actual stent installation. (Not everyone is immobile
during anesthesia.) This is important because the stent is inserted in an
artery in the groin and any motion there could result in major bleeding. They
told him to call 911 if that happened. Medical humor.

He will remain in Massachusetts for a while so the doctors can monitor his
recovery. He expects to be on a plane back to Bellevue on about February 25.

It was a long Thanksgiving vacation.

The movie “Apollo 13” famously showed the astronauts
doing a calculation on a slide rule. It was the “pocket” model and was
identical to the consumer one

I too thought the article was quite wonderful....and re slide rules.
Walter and I talked about them a bit. great guy and sorely missed..i
still use my 6 in slide rules ....my 18 in is bamboo and belonged to my
dad. Dad gave me a 6 in pickett aluminum while in high school....I used
it in College along with my 6 in circular ( it was tossed by friend
after getting "the NEW hp35") for my engineering classes...most of my
colleagues had the HP calculators (( out of my budget!)...so on the top
on exams I had to write "slide rule" since my numbers were not
"EXACT"...but good enough....I Still use them all....but I do like my
HP35, 25 and 11C all of which I use...but the slide rule is always
around if the batteries die..especially in the 25 and 35...battery packs
need rebuilding....a 6 inch is always in arms reach even in the car!
oh well fond memories, Walter will not be forgotten.
搁别苍é别

On 2/10/24 7:50 PM, Jim Ford wrote:

Yes, I had only bought once or twice from Sphere, but Walt and Susan did

include some useful goodies. Say, that NYT article mentioned slide rules
made out of bamboo, and I'd never thought about it until today, but my
dad's old slipstick from the 1960s had the open grain at the ends and was
almost certainly made of bamboo! I'm too young (born in 1965, engineering
school 1983-1991 including grad school) to have used one, but I'm starting
to think I missed out. Say, what make and model would you folks recommend
for an EE with a bent toward RF, microwaves, and fiber optics? Steve,
interestingly enough, my dad is a chemist turned software engineer who used
to teach p-chem! Definitely not my thing, and I jumped to EE after starting
freshman year as a biochemistry major; those chem labs blew it for me.
Rest In Peace, Walter. Jim Ford Sent from my T-Mobile 4G LTE Device

-------- Original message --------From: stevenhorii <

sonodocsch@...> Date: 2/10/24 6:08 PM (GMT-08:00) To:
[email protected] Subject: Re: [TekScopes] Walter Shawlee obituary in
the NY Times I miss Walt. I first got acquainted with Sphere Research
through sliderules. I had saved mine from my university days. I still have
the DietzgenN1725 Vector Log Log. My father was an architect and bought it
for me at adiscount since the firm he worked for had a contract with
Dietzgen fordrafting instruments. That slide rule got me through p-chem. I
only usedthe hyperbolic scales to see how they worked. I did use most of
the othersfor homework problems.A lot of my collection came from Sphere
Research - new-in-the-box Pickettrules including their famous N4, also a
vector log log. I have one of thosenuclear bomb effects circular slide
rules and got it in the book “TheEffects of Nuclear Weapons” but on eBay,
not from Walt. Since then, I alsofound a Soviet version. Being a
radiologist, I thought that understandingthe dangers of the radiation from
these weapons was something I should knowabout.It was only later that I
started buying electronics from Walt. He wasalways generous and would
include a bonus bag of parts. Most were farbetter than the usual “floor
sweeping” sorts of stuff; a lot of usableparts in those bags.I’m sad that
he’s gone but glad Susan carries on. The effects of his yearsof catering to
many of those in this group are probably well known sinceI’m sure many of
you would turn your browser to his site the minute his“Stuff Day”
announcements appeared.Steve H.On Sat, Feb 10, 2024 at 16:37 John Griessen
via groups.io <john@...> wrote:> That was a nicely
done bio.>>> >>>

Thanks a lot for the tip Eric! Is he in this group? Sorry I'm relatively
new to this group and I know it has a ton of members. Do you think he
would mind me emailing him? I've been looking for kits for these
extenders, but haven't had much luck. I think my plan for the daughter
cable just to hook the A6/A7 boards up to the CG5011 interconnect board
will work fine, but I still wouldn't mind having some extender cables for
the TM5003.

-Frank

@Victor,

Fair enough. I just wouldn't compare the work I did to the soldering job
done by a prior owner which I would agree was hacked.

Yes I did joke in my video about the mess of jumper wires. But I was
actually a bit proud that the modifications I made could be reversed back
to the original easily. In the event I come across the parts at a fair
price.

But thank you. Maybe I overreacted.

-Frank

I discovered that the probe compensation output signal shows pretty significant ringing at time bases of 200 ns or faster.

Yes, I had only bought once or twice from Sphere, but Walt and Susan did include some useful goodies.? Say, that NYT article mentioned slide rules made out of bamboo, and I'd never thought about it until today, but my dad's old slipstick from the 1960s had the open grain at the ends and was almost certainly made of bamboo!? I'm too young (born in 1965, engineering school 1983-1991 including grad school) to have used one, but I'm starting to think I missed out.? Say, what make and model would you folks recommend for an EE with a bent toward RF, microwaves, and fiber optics?? Steve, interestingly enough, my dad is a chemist turned software engineer who used to teach p-chem! Definitely not my thing, and I jumped to EE after starting freshman year as a biochemistry major; those chem labs blew it for me.? Rest In Peace, Walter.? ? ? ?Jim Ford?Sent from my T-Mobile 4G LTE Device
-------- Original message --------From: stevenhorii <sonodocsch@...> Date: 2/10/24 6:08 PM (GMT-08:00) To: [email protected] Subject: Re: [TekScopes] Walter Shawlee obituary in the NY Times I miss Walt. I first got acquainted with Sphere Research through sliderules. I had saved mine from my university days. I still have the DietzgenN1725 Vector Log Log. My father was an architect and bought it for me at adiscount since the firm he worked for had a contract with Dietzgen fordrafting instruments. That slide rule got me through p-chem. I only usedthe hyperbolic scales to see how they worked. I did use most of the othersfor homework problems.A lot of my collection came from Sphere Research - new-in-the-box Pickettrules including their famous N4, also a vector log log. I have one of thosenuclear bomb effects circular slide rules and got it in the book “TheEffects of Nuclear Weapons” but on eBay, not from Walt. Since then, I alsofound a Soviet version. Being a radiologist, I thought that understandingthe dangers of the radiation from these weapons was something I should knowabout.It was only later that I started buying electronics from Walt. He wasalways generous and would include a bonus bag of parts. Most were farbetter than the usual “floor sweeping” sorts of stuff; a lot of usableparts in those bags.I’m sad that he’s gone but glad Susan carries on. The effects of his yearsof catering to many of those in this group are probably well known sinceI’m sure many of you would turn your browser to his site the minute his“Stuff Day” announcements appeared.Steve H.On Sat, Feb 10, 2024 at 16:37 John Griessen via groups.io <john@...> wrote:> That was a nicely done bio.>>> >>>