OT: High school drafting class, ~1975

[Gwen Patton]

My slide rule at the time was a Sterling pocket model I got at the
drugstore for $2. I carried it in my bag or a jacket pocket.

Now I have over 100 of the things, including the venerable K&R 20" log-log
duplex decitrig mentioned in Heinlein's "Have Spacesuit Will Travel".

Another Heinlein book that's on topic here is "Door Into Summer", in which
the protagonist invents a mechanical drafting machine, built around an
electric typewriter. It revolutionized drafting in the book, just as CAD
revolutionized it for us.

73,
Gwen, NG3P

On Sat, Apr 24, 2021, 4:02 PM Jim Brown <[hidden email]> wrote:

> On 4/24/2021 1:00 AM, Joe K2UF wrote:
> > In 1955 we were the cool guys with a slide rule in a leather case hanging
> > from your belt and india ink stains on your hands.
>
> I don't remember Drafting in high school, but I do remember it, along
> with courses in Nomography graphical methods to compute equations) and
> the derivation of emperical equations from graphical data, both of which
> were taught with mechanical drawing in my freshman year of EE in '59-'60.
>
> My slide rule NEVER hung from my belt.
>
> 73, Jim K9YC
>
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> On Apr 23, 2021, at 22:08, Wayne Burdick <[hidden email]> wrote:
>
> Anyone remember "drafting"? A favorite class in high school: blueprints, mechanical drawings, schematics, straight edges, hand lettering, projections and elevations. We invented things to draw that weren't real, but looked like they should be. Did all the math by hand -- on a slide rule, if necessary. Day-dreamed about what we might one day build.


Afternoon sir (and the group),

I still have my Dietzgen drafting set from high school, circa 1970. That was the only drafting class that I ever had, but I made a living as a drafter and design technician for a number of years. I then supplemented my income while in college preparing camera-ready drawings for graduate students and faculty members at university.

My Koh-I-Nor technical pens are still in the case (in a box in the garage) along with a set of Leroy lettering templates, including Greek symbols. I can still run a Leroy bug.

That drafting class led me to a career in engineering. I still hand draw sketches for analytical work. Although it’s been a long time since I drew an isometric.

Fun stuff… thanks for making me remember…

David Thompson, AG7TX
Jack of All Trades
Master of None
CWOps #2861
[hidden email]
[hidden email]


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[Elecraft mailing list]

 Yep, did the mechanical dwgs by hand and taped the artwork for the PCBs for the first few products I designed at a startup.  When I built my K2 in 00/01, I used a drafting table that had a drafting machine as a work bench and my first operating desk.  I had gotten it from work when they were ditching them and going totally digital.  I remember our new CAD workstations being a big deal because they had 80286 processors!

Lou W7HV

    On Saturday, April 24, 2021, 3:13:48 PM MDT, David Thompson via Elecraft <[hidden email]> wrote:  
 
 > On Apr 23, 2021, at 22:08, Wayne Burdick <[hidden email]> wrote:
>
> Anyone remember "drafting"? A favorite class in high school: blueprints, mechanical drawings, schematics, straight edges, hand lettering, projections and elevations. We invented things to draw that weren't real, but looked like they should be. Did all the math by hand -- on a slide rule, if necessary. Day-dreamed about what we might one day build.


Afternoon sir (and the group),

I still have my Dietzgen drafting set from high school, circa 1970. That was the only drafting class that I ever had, but I made a living as a drafter and design technician for a number of years. I then supplemented my income while in college preparing camera-ready drawings for graduate students and faculty members at university.

My Koh-I-Nor technical pens are still in the case (in a box in the garage) along with a set of Leroy lettering templates, including Greek symbols. I can still run a Leroy bug.

That drafting class led me to a career in engineering. I still hand draw sketches for analytical work. Although it’s been a long time since I drew an isometric.

Fun stuff… thanks for making me remember…

David Thompson, AG7TX
Jack of All Trades
Master of None
CWOps #2861
[hidden email]
[hidden email]


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[engineercm]

Oh, my, Wayne.  We must be of the same age--er vintage?  I still have  my
K&E drafting tools set and my K&E Log Log Duplex Decitrig slide rule
(mahogany don't you know).
Memories of eraser dust; velum; t-square; PC layout by hand; plastic symbol
templates.  I think it was then that I changed from cursive to block
lettering, never to look back until taking  up CW some 40 years later.

Unlike you, I never had the creative genius to think up something, build
it, and have it work.  BUT I do still enjoy, after all these years,
building something that somebody else designed and making it work.  Still
magic after all these years.

Any, yes, some of those designs I built and let out the magic gas were
yours.  I hope you will have the creative juice in you for some time to
come.  Maybe even another real kit (soldering, toroids) from Elecraft just
for fun.

Stay well, my friend,

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Virus-free.
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On Sat, Apr 24, 2021 at 1:10 AM Wayne Burdick <[hidden email]> wrote:

> OK, I've really dated myself now.
>
> Anyone remember "drafting"? A favorite class in high school: blueprints,
> mechanical drawings, schematics, straight edges, hand lettering,
> projections and elevations. We invented things to draw that weren't real,
> but looked like they should be. Did all the math by hand -- on a slide
> rule, if necessary. Day-dreamed about what we might one day build.
>
> 45 years later, we're using tools we couldn't have imagined. Modeling
> circuits and objects with millions of parameters and vectors, realizing
> them in virtual space, manipulating them in real time. Testing finished
> products before they're even assembled.
>
> The transformation is mind boggling. Yet the best part now, as it was
> then, is the occasional burst of creative energy that propels an idea
> forward. The feeling of pieces falling into place. Or forcing them into
> place out of sheer necessity.
>
> Most of the time, we think of our new tools and techniques as advances in
> the state of the art. Things we can't live without. But those same defining
> moments happened just as often in simpler times.
>
> Case in point -- my first real project, a rendition of W7ZOI's
> Micro-mountaineer. Carefully documenting it took several sheets of
> 4-squares-per-inch grid paper, which may still be in my cellar, beneath a
> lifetime of such drawings. With the schematic, I took a lot of pride in
> making the circuits look well-organized, as if that would somehow improve
> my odds. On the PC board, I drew large traces and pads with the etch-resist
> pen, as if that would somehow appease the electrons.
>
> I etched the PCB, soldered two dozen parts, and connected a 12 V lantern
> battery. Thanks to my paranoia about what would happen if I did it wrong,
> I'd taken my time and done it right.
>
> I was rewarded with a hiss of band noise and a few CW signals on 40 meters.
>
> Here's to those moments, and to that timeless pursuit: turning
> abstractions into reality.
>
> 73,
> Wayne
> N6KR
>
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>

--
73,

Clark, WU4B
Little Pistol With Wires
QRPARCI #10815
SKCC #3892
NAQCC #5055
CWOPS #1869
Collins Collectors #AC90-12432
Southeastern DX Club <http://www.sedxc.org>
North Georgia QRP Club <http://www.nogaqrp.org>


*"It is vain to do with more what can be done with less."*
*Attributed to *William of Occam (1288 AD - 1348 AD)
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[Edward H Russell]

I'm with you on this. Freshman Engineering Drafting class in 1970 was a
total revelation. But look where we are now! (My technique seeks renewal.)

ED / W2RF




-----Original Message-----
From: [hidden email] <[hidden email]> On
Behalf Of Wayne Burdick
Sent: Saturday, April 24, 2021 1:09 AM
To: Elecraft Reflector <[hidden email]>
Subject: [Elecraft] OT: High school drafting class, ~1975

OK, I've really dated myself now.

Anyone remember "drafting"? A favorite class in high school: blueprints,
mechanical drawings, schematics, straight edges, hand lettering, projections
and elevations. We invented things to draw that weren't real, but looked
like they should be. Did all the math by hand -- on a slide rule, if
necessary. Day-dreamed about what we might one day build.

45 years later, we're using tools we couldn't have imagined. Modeling
circuits and objects with millions of parameters and vectors, realizing them
in virtual space, manipulating them in real time. Testing finished products
before they're even assembled.

The transformation is mind boggling. Yet the best part now, as it was then,
is the occasional burst of creative energy that propels an idea forward. The
feeling of pieces falling into place. Or forcing them into place out of
sheer necessity.

Most of the time, we think of our new tools and techniques as advances in
the state of the art. Things we can't live without. But those same defining
moments happened just as often in simpler times.

Case in point -- my first real project, a rendition of W7ZOI's
Micro-mountaineer. Carefully documenting it took several sheets of
4-squares-per-inch grid paper, which may still be in my cellar, beneath a
lifetime of such drawings. With the schematic, I took a lot of pride in
making the circuits look well-organized, as if that would somehow improve my
odds. On the PC board, I drew large traces and pads with the etch-resist
pen, as if that would somehow appease the electrons.

I etched the PCB, soldered two dozen parts, and connected a 12 V lantern
battery. Thanks to my paranoia about what would happen if I did it wrong,
I'd taken my time and done it right.

I was rewarded with a hiss of band noise and a few CW signals on 40 meters.

Here's to those moments, and to that timeless pursuit: turning abstractions
into reality.

73,
Wayne
N6KR

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[Don Wilhelm-5]

I did take a Mechanical Drawing class in High School.  It was of some
use in my EE classes in college, but mostly drawing lines for schematics
at that time (1960 era) - a straightedge and a compass or plastic
template for making circles (remember tubes) was all that was needed at
that time.  We graduated to transistors in my senior year.

Those HS class skills were mainly unused for many years until I took an
early retirement and started a custom woodworking shop. Then those
skills gave me the ability to sit down with a customer and sketch out
what they wanted in a perspective image, making changes until the
customer and I were satisfied about what they wanted me to build.

73,
Don W3FPR



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[Bill Coleman-2]

“Drafting?”

No, we didn’t call it that. It was “Industrial Arts”. I remember taking in 7th grade. And a few of us took the second semester Industrial Arts rather than shop due to scheduling issues.

That was back in 1973-4. It was one of my favorite classes as well.

I still draw up schematics on grid paper with a pencil. Old fashioned in this modern day, but still fun, and just as rewarding for my simple designs.

> On Apr 24, 2021, at 1:08 AM, Wayne Burdick <[hidden email]> wrote:
>
> OK, I've really dated myself now.
>
> Anyone remember "drafting"? A favorite class in high school: blueprints, mechanical drawings, schematics, straight edges, hand lettering, projections and elevations. We invented things to draw that weren't real, but looked like they should be. Did all the math by hand -- on a slide rule, if necessary. Day-dreamed about what we might one day build.
>
> 45 years later, we're using tools we couldn't have imagined. Modeling circuits and objects with millions of parameters and vectors, realizing them in virtual space, manipulating them in real time.
...
>
> Here's to those moments, and to that timeless pursuit: turning abstractions into reality.
>
> 73,
> Wayne
> N6KR
>

Bill Coleman, AA4LR, PP-ASEL        Mail: [hidden email]
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901

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[Bill Coleman-2]

When I started Tech in 1979, those drafting courses were no longer required.

And, indeed, they retired the card punches for the FORTRAN courses in 1981-2. I was part of the User Assistance team in the computer center that helped all those EE 1010 students navigate their way to using the interactive terminals….

> On Apr 24, 2021, at 2:55 AM, Mike Morrow <[hidden email]> wrote:
>
>  In actuality those high school drafting skills prepared me completely for the year of drafting courses that was mandatory at Geogia Tech in 1970.  I'd finish a lab drafting session in less than 45 minutes while my buddies needed the full three hours.  In those pre-calculator pre-computer days the only tools that an undergrad student needed were a good slide rule (mine cost $36 in 1969, about $260 today) and a drafting set.  To use the Univac 1108 campus scientific mainframe for Fortran IV programs, we submitted hollerith cards we punched using IBM 026 and 029 card punches.

Bill Coleman, AA4LR, PP-ASEL        Mail: [hidden email]
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901

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[Elecraft mailing list]

Why is it that these memories start coming back as we age? My two other high school nerd buddies correspond with email and each time they bring back very clear memories of our radio exploits. I just found my QSL card from my teens and also the stamped certificate from my Advanced License test I took in 1983 at Dayton.  Too bad we had to send back our original license back then. One friend sent back a photo copy (not cheap back then) of each license when he upgraded and so still has all his original certificates.  What treasure.

Dave K8WPE

David J. Wilcox’s iPad

> On Apr 24, 2021, at 8:32 AM, Dave Sublette <[hidden email]> wrote:
>
> My relationship with drafting class goes back to before I was born.   My
> Dad, born in 1918, took drafting class in 1936. After he died, I found a
> pen and ink drawing of his from that class. It was a schematic of two
> different crystal sets.  As a teen, Dad was the neighborhood radio
> technician. He strung wire antennas and repaired headphones for folks.
>
> I had that schematic framed and built one of the sets.  I entered it in the
> antiques section of the county fair(with a note that the radio was not the
> antique).  I won a Blue Ribbon and was considered for the grand champion
> ribbon.  I have the drawing and the set on my mantle.
>
> At almost 80 years of age, my memories are increasing in value.
>
> 73,
>
> Dave, K4TO
>
>> On Sat, Apr 24, 2021, 4:00 AM Joe K2UF <[hidden email]> wrote:
>>
>> In 1955 we were the cool guys with a slide rule in a leather case hanging
>> from your belt and india ink stains on your hands.
>>
>> 73  Joe K2UF
>>
>> -----Original Message-----
>> From: [hidden email]
>> [mailto:[hidden email]] On Behalf Of Wayne Burdick
>> Sent: Saturday, April 24, 2021 1:09 AM
>> To: Elecraft Reflector
>> Subject: [Elecraft] OT: High school drafting class, ~1975
>>
>> OK, I've really dated myself now.
>>
>> Anyone remember "drafting"? A favorite class in high school: blueprints,
>> mechanical drawings, schematics, straight edges, hand lettering,
>> projections
>> and elevations. We invented things to draw that weren't real, but looked
>> like they should be. Did all the math by hand -- on a slide rule, if
>> necessary. Day-dreamed about what we might one day build.
>>
>> 45 years later, we're using tools we couldn't have imagined. Modeling
>> circuits and objects with millions of parameters and vectors, realizing
>> them
>> in virtual space, manipulating them in real time. Testing finished products
>> before they're even assembled.
>>
>> The transformation is mind boggling. Yet the best part now, as it was then,
>> is the occasional burst of creative energy that propels an idea forward.
>> The
>> feeling of pieces falling into place. Or forcing them into place out of
>> sheer necessity.
>>
>> Most of the time, we think of our new tools and techniques as advances in
>> the state of the art. Things we can't live without. But those same defining
>> moments happened just as often in simpler times.
>>
>> Case in point -- my first real project, a rendition of W7ZOI's
>> Micro-mountaineer. Carefully documenting it took several sheets of
>> 4-squares-per-inch grid paper, which may still be in my cellar, beneath a
>> lifetime of such drawings. With the schematic, I took a lot of pride in
>> making the circuits look well-organized, as if that would somehow improve
>> my
>> odds. On the PC board, I drew large traces and pads with the etch-resist
>> pen, as if that would somehow appease the electrons.
>>
>> I etched the PCB, soldered two dozen parts, and connected a 12 V lantern
>> battery. Thanks to my paranoia about what would happen if I did it wrong,
>> I'd taken my time and done it right.
>>
>> I was rewarded with a hiss of band noise and a few CW signals on 40 meters.
>>
>> Here's to those moments, and to that timeless pursuit: turning abstractions
>> into reality.
>>
>> 73,
>> Wayne
>> N6KR
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message
>> delivered to [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
> ______________________________________________________________
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[Dave Sublette-2]

To clarify, my Dad was not a ham.  But he did teach me and the rest of the
scouts the code.  He was my first scoutmaster.  When I joined the Navy at
age 19, he got interested and got his novice ticket as a surprise.  I was
at K6NCG, going to ET'A' school on Treasure Island.  He called me on the
phone, which was a big deal long distance from Indiana to California in
1962.  We met on the 40M Novice band and I was his first QSO.  He refused
to work anyone else until he worked me.  When he died in 1999,  I found the
QSL I had sent him from K6NCG, hanging on his bedroom wall. He never got
his general.

As I said before, memories are priceless.

73,

Dave, K4TO

On Sat, Apr 24, 2021 at 8:29 AM Dave Sublette <[hidden email]> wrote:

> My relationship with drafting class goes back to before I was born.   My
> Dad, born in 1918, took drafting class in 1936. After he died, I found a
> pen and ink drawing of his from that class. It was a schematic of two
> different crystal sets.  As a teen, Dad was the neighborhood radio
> technician. He strung wire antennas and repaired headphones for folks.
>
> I had that schematic framed and built one of the sets.  I entered it in
> the antiques section of the county fair(with a note that the radio was not
> the antique).  I won a Blue Ribbon and was considered for the grand
> champion ribbon.  I have the drawing and the set on my mantle.
>
> At almost 80 years of age, my memories are increasing in value.
>
> 73,
>
> Dave, K4TO
>
> On Sat, Apr 24, 2021, 4:00 AM Joe K2UF <[hidden email]> wrote:
>
>> In 1955 we were the cool guys with a slide rule in a leather case hanging
>> from your belt and india ink stains on your hands.
>>
>> 73  Joe K2UF
>>
>> -----Original Message-----
>> From: [hidden email]
>> [mailto:[hidden email]] On Behalf Of Wayne Burdick
>> Sent: Saturday, April 24, 2021 1:09 AM
>> To: Elecraft Reflector
>> Subject: [Elecraft] OT: High school drafting class, ~1975
>>
>> OK, I've really dated myself now.
>>
>> Anyone remember "drafting"? A favorite class in high school: blueprints,
>> mechanical drawings, schematics, straight edges, hand lettering,
>> projections
>> and elevations. We invented things to draw that weren't real, but looked
>> like they should be. Did all the math by hand -- on a slide rule, if
>> necessary. Day-dreamed about what we might one day build.
>>
>> 45 years later, we're using tools we couldn't have imagined. Modeling
>> circuits and objects with millions of parameters and vectors, realizing
>> them
>> in virtual space, manipulating them in real time. Testing finished
>> products
>> before they're even assembled.
>>
>> The transformation is mind boggling. Yet the best part now, as it was
>> then,
>> is the occasional burst of creative energy that propels an idea forward.
>> The
>> feeling of pieces falling into place. Or forcing them into place out of
>> sheer necessity.
>>
>> Most of the time, we think of our new tools and techniques as advances in
>> the state of the art. Things we can't live without. But those same
>> defining
>> moments happened just as often in simpler times.
>>
>> Case in point -- my first real project, a rendition of W7ZOI's
>> Micro-mountaineer. Carefully documenting it took several sheets of
>> 4-squares-per-inch grid paper, which may still be in my cellar, beneath a
>> lifetime of such drawings. With the schematic, I took a lot of pride in
>> making the circuits look well-organized, as if that would somehow improve
>> my
>> odds. On the PC board, I drew large traces and pads with the etch-resist
>> pen, as if that would somehow appease the electrons.
>>
>> I etched the PCB, soldered two dozen parts, and connected a 12 V lantern
>> battery. Thanks to my paranoia about what would happen if I did it wrong,
>> I'd taken my time and done it right.
>>
>> I was rewarded with a hiss of band noise and a few CW signals on 40
>> meters.
>>
>> Here's to those moments, and to that timeless pursuit: turning
>> abstractions
>> into reality.
>>
>> 73,
>> Wayne
>> N6KR
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message
>> delivered to [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
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[chrisrut]

>
> Wayne Burdick n6kr at elecraft.com
> <elecraft%40mailman.qth.net?Subject=Re%3A%20%5BElecraft%5D%20OT%3A%20%20High%20school%20drafting%20class%2C%20%7E1975&In-Reply-To=%3C8E25CA35-49B9-46D8-9487-BC597E246425%40elecraft.com%3E>
>  wrote:"Here's to those moments, and to that timeless pursuit: turning
> abstractions into reality."


Indeed. There is nothing so sublime as the moment of clarity when the last
pieces of a jigsaw puzzle align, and the vision in your mind's eye
crystalizes into reality.

Thanks for sharing your visions with us :-)

73 Chris NW6V
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[SteveL]

I envied a friend in a EE program and the University of Cincinnati.  He had the first HP-35 I’d ever seen the year it was introduced (1972), but it was way out of my budget as a new freshman studying Engineering.

A couple of months after my friend acquired the HP-35, to my fascination he received a letter from HP detailing a list of obscure calculations the device performed in error (the tangent of 98.2352…, etc.) .  The letter went on to describe that these were determined and then verified by computer simulation of the computational algorithms used internally - a concept new to this budding engineer.  And, if he returned the calculator, it would be repaired and corrected.

And to think we basically flew to the moon on a slide rule?  Who could ever imagine a computer that could fit into one room?  (Paraphrasing a line from early in the Apollo 13 movie.)

Who carried around a CRC book of tables of various calculations in lieu of an unaffordable scientific calculator?
Or programming FORTRAN on punch cards?
Or PDP-8 on paper tape after toggling in the boot loader through the front panel switches?

We’ve come a long way!  I love the reminiscences…

Steve
aa8af


>
> I scraped and saved my summertime active duty pay to buy a Bomar 901 four-function calculator in 1972 for $150, about $950 today.  Hewlett-Packard had introduced their milestone HP-35 scientific calculator that year for $400, about $2535 today.  Extremely few students could afford that.
>

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[Phil Kane-2]

On 4/24/2021 6:11 AM, Barry wrote:

> High school in 1975?  You're just a kid in ham circles, Wayne:-)
>
> Barry W2UP (HS class of '74)

Mere infants.  HS '53 didn't have drafting but that fall in first year
EE we had a whole year of it.  The instructor was a graduate of the US
Merchant Marine Academy and he was a nit-picker.

As for slide rules - I still have my K&E Log Log Duplex Vector - sits in
its orange case on a shelf behind me.  I take it out every few years
just to gaze upon it.  My step-son who is an IT engineer  says that it's
best use is to slay saber-tooth tigers!  :)

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

 From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon

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[Bill Frantz]

OK, I can't resist any longer.

On 4/26/21 at 11:33 AM, [hidden email] (SteveL) wrote:

>Who carried around a CRC book of tables of various calculations in lieu of an unaffordable scientific calculator?
Yup.

>Or programming FORTRAN on punch cards?
Yup. At first on a IBM 650 with a 4 pass compiler, intermediate
storage on punch cards.

>Or PDP-8 on paper tape after toggling in the boot loader through the front panel switches?
Sorry, mine was a Varian 620/i (8K of 16 bit words) used for
nodes in a circuit switched data network (Tymnet). :-)

73 Bill AE6JV

---------------------------------------------------------------------------
Bill Frantz        | Re IOT: "How many access control systems
does it take
www.pwpconsult.com | to change a light bulb?" - Dean Tribble

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[eberbari]

Well, I too could not resist this thread.  I took drafting in my senior year
(1967) as did all those who identified as wanting to be an engineer.  I did
OK.  Even got hired by the city engineer and helped to redraw all of the
city standards for sidewalks, driveway approaches, etc.  However, I did go
into EE and wound up with 3 degrees.

One of my professors was Gordon Bell (of Digital Equipment and
PDP(3,8,11)fame and he had us learn Fortran by writing code which emulated
the PDP 8 instruction set (anyone remember TAD?)

And I had a Versalog slide rule, still in my desk.

Needed to get this in before Eric shuts us down for going down memory.

Ed, W9EJB



--
Sent from: http://elecraft.365791.n2.nabble.com/
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[Timothy Elwell]

 From what I've seen, I guess I'm the baby of the drafting class guys.
HI HI I took drafting in HS in 1988. Luckily, had a great teacher that
was really good at teaching drafting, even in that "late" time. Still
have all my drawings from that class rolled up somewhere around here.
Made the drafting/CAD in engineering at college a breeze. Like others, I
still get out pen/pencil and paper for initial sketches. I'm just much
quicker at that and can get the basic design down and workable. Plus
it's just more fun for me, even though my degree is in computer
science/technology. You'd think I'd like the CAD better, but I still
prefer the paper. Guess I'm just old-fashioned! HI HI

73,

Tim

--

KG1GEM
Flower Mound, TX
Denton Co. ARES & SkyWarn Spotter

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[Elecraft mailing list]

 I have greatly enjoyed the memory fest here.  Wasn't going to join in, but, Steve, your email really hit close to home.  I replied to Steve, intended for whole group.

Took 'Mechanical Drawing' in Jr. high, loved it.  Also had drawing classes (course also included slide rule) first semester of college.

I was a co-op student in EE and worked for NASA 1962-1967.  I was placed in a software group, kinda out of my degree, but I liked it and spent my career as a Software Engineer (in the day we were called 'programmers.')
I was greatly blessed to be working at NASA at the beginning of operations in Houston.  The first computer I worked on was an IBM 7094, 32K of 36 bit words, 2 microsecond cycle time, mag tape OS, no disk.  We were located in what had been the PBS TV studio on the University of Houston campus, reworked to be a computer center - the space center (MSC) was under construction.  Languages were FORTRAN II, assembly (FAP) and eventually FORTRAN IV and assembly.  Punch cards of course.
Slide rules indeed!  However, we also had a Friden mechanical calculator which could do square roots!!

Ham rig at the time was a homebrew 6AU6-6146 from a QST article and Hallicrafters S-19R with Heathkit Q multiplier, dipole on 40m cw.
As you, Steve, indicated I could not afford the HP 'digital slide rule' -- bought the TI version about a year later for a cost 1/2 of the HP, used it for years.  Still have my K&E DECI-LON (and a B-29  'Load Adjuster' slide rule from WWII).
I remember all the items you mentioned.
Finally (at last) I often tell younger folks (I am 77) that they have orders of magnitude more power in their cell phones than we had in our gigantic computers -- BUT -- we put men on the moon with 'em.
Sorry for the wide bandwidth,73,John  K5ENQ



    On Monday, April 26, 2021, 10:36:33 AM CDT, SteveL <[hidden email]> wrote:  
 
 I envied a friend in a EE program and the University of Cincinnati.  He had the first HP-35 I’d ever seen the year it was introduced (1972), but it was way out of my budget as a new freshman studying Engineering.

A couple of months after my friend acquired the HP-35, to my fascination he received a letter from HP detailing a list of obscure calculations the device performed in error (the tangent of 98.2352…, etc.) .  The letter went on to describe that these were determined and then verified by computer simulation of the computational algorithms used internally - a concept new to this budding engineer.  And, if he returned the calculator, it would be repaired and corrected.

And to think we basically flew to the moon on a slide rule?  Who could ever imagine a computer that could fit into one room?  (Paraphrasing a line from early in the Apollo 13 movie.)

Who carried around a CRC book of tables of various calculations in lieu of an unaffordable scientific calculator?
Or programming FORTRAN on punch cards?
Or PDP-8 on paper tape after toggling in the boot loader through the front panel switches?

We’ve come a long way!  I love the reminiscences…

Steve
aa8af
   
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[Elecraft mailing list]

 HP-35!  Hah. Came out my second year in college. $400. The rich kids got them. That's over $2k in 2021 dollars. I had to keep stroking my slide rule for another year until the Ti SR50 came out.  I waited in line with a bunch of other nerds at the doors of Macy's (!) when they had a sale on them...around $125 IIRC.  The doors opened and we all rushed the counter...probably 35+ of us.  I don't know if everybody got one but I did. That thing lasted me well through graduate school and my first few jobs.

   On Monday, April 26, 2021, 9:34:45 AM MDT, SteveL <[hidden email]> wrote:  
 
 I envied a friend in a EE program and the University of Cincinnati.  He had the first HP-35 I’d ever seen the year it was introduced (1972), but it was way out of my budget as a new freshman studying Engineering.

A couple of months after my friend acquired the HP-35, to my fascination he received a letter from HP detailing a list of obscure calculations the device performed in error (the tangent of 98.2352…, etc.) .  The letter went on to describe that these were determined and then verified by computer simulation of the computational algorithms used internally - a concept new to this budding engineer.  And, if he returned the calculator, it would be repaired and corrected.

And to think we basically flew to the moon on a slide rule?  Who could ever imagine a computer that could fit into one room?  (Paraphrasing a line from early in the Apollo 13 movie.)

Who carried around a CRC book of tables of various calculations in lieu of an unaffordable scientific calculator?
Or programming FORTRAN on punch cards?
Or PDP-8 on paper tape after toggling in the boot loader through the front panel switches?

We’ve come a long way!  I love the reminiscences…

Steve
aa8af


>
> I scraped and saved my summertime active duty pay to buy a Bomar 901 four-function calculator in 1972 for $150, about $950 today.  Hewlett-Packard had introduced their milestone HP-35 scientific calculator that year for $400, about $2535 today.  Extremely few students could afford that.
>

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[MIKE ZANE]

What the heck are all those things you guys are talking about?  Mike n6zw

> On 04/26/2021 11:18 AM Bill Frantz <[hidden email]> wrote:
>
>  
> OK, I can't resist any longer.
>
> On 4/26/21 at 11:33 AM, [hidden email] (SteveL) wrote:
>
> >Who carried around a CRC book of tables of various calculations in lieu of an unaffordable scientific calculator?
> Yup.
>
> >Or programming FORTRAN on punch cards?
> Yup. At first on a IBM 650 with a 4 pass compiler, intermediate
> storage on punch cards.
>
> >Or PDP-8 on paper tape after toggling in the boot loader through the front panel switches?
> Sorry, mine was a Varian 620/i (8K of 16 bit words) used for
> nodes in a circuit switched data network (Tymnet). :-)
>
> 73 Bill AE6JV
>
> ---------------------------------------------------------------------------
> Bill Frantz        | Re IOT: "How many access control systems
> does it take
> www.pwpconsult.com | to change a light bulb?" - Dean Tribble
>
> ______________________________________________________________
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[Mark Musick]

OK, I can't resist any longer either.
I waited and bought the HP-45 when it came out. It had hyperbolic functions as well as polar to rectangular conversion functions. Being a EE the polar to rectangular conversion is why I bought it. It made life much easier. Of course my dad had a fit when he found out what I paid for it.

Now to the computers, how many of you youngsters out there remember core memory? For you really young folks there was no RAM. 0s and 1s were stored on toroidal cores on a back plane.
IN 1978, when I started at Public Service Company of Indiana (PSI), the local electric utility, we were using two 16 bit MODCOMP minicomputers. Each minicomputer had 64K of core memory for the supervisory control and data acquisition (SCADA) system. Each machine had a tape drive and two 360k disk drives. We thought we were downtown. The SCADA system was used to control and monitor the HV transmission system. 69kV - 765kV.

73,
Mark, WB9CIF

-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of MIKE ZANE
Sent: Monday, April 26, 2021 21:13
To: Bill Frantz <[hidden email]>; [hidden email]
Subject: Re: [Elecraft] OT: High school drafting class, ~1975

What the heck are all those things you guys are talking about?  Mike n6zw

> On 04/26/2021 11:18 AM Bill Frantz <[hidden email]> wrote:
>
>  
> OK, I can't resist any longer.
>
> On 4/26/21 at 11:33 AM, [hidden email] (SteveL) wrote:
>
> >Who carried around a CRC book of tables of various calculations in lieu of an unaffordable scientific calculator?
> Yup.
>
> >Or programming FORTRAN on punch cards?
> Yup. At first on a IBM 650 with a 4 pass compiler, intermediate
> storage on punch cards.
>
> >Or PDP-8 on paper tape after toggling in the boot loader through the front panel switches?
> Sorry, mine was a Varian 620/i (8K of 16 bit words) used for nodes in
> a circuit switched data network (Tymnet). :-)
>
> 73 Bill AE6JV
>
> ---------------------------------------------------------------------------
> Bill Frantz        | Re IOT: "How many access control systems
> does it take
> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pw
> pconsult.com%2F&amp;data=04%7C01%7C%7Cea9b9d654aaf4d9d807d08d908f83e81
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>
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