Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Just a heads up. If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. Ten digits, 56
functions for a buck. I bought one for my grandson.


Dan
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On Wed, 20 Oct 2010 12:16:23 -0700 (PDT), "
wrote:

Just a heads up. If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. Ten digits, 56
functions for a buck. I bought one for my grandson.


Dan


In 1972, I got a 90 on a test instead of a 100 because I wasted time
with my slip stick. So, I went out and spent $200 on an SR-10, four
function plus reciprocal. I remember I had just got a raise from 1.60
all the way to 2.30 so it only took two weeks pay.

Karl

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On Oct 20, 3:36*pm, Karl Townsend
wrote:
On Wed, 20 Oct 2010 12:16:23 -0700 (PDT), "

wrote:
Just a heads up. *If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. *Ten digits, 56
functions for a buck. *I bought one for my grandson.


Dan


In 1972, I got a 90 on a test instead of a 100 because I wasted time
with my slip stick. So, I went out and spent $200 on an SR-10, four
function plus reciprocal. I remember I had just got a raise from 1.60
all the way to 2.30 so it only took two weeks pay.

Karl


You are not the only one, Karl.

Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.

The program had to compute something based on the prime interest rate.
If you remember those years, the prime rate began to change twice a
month, then weekly, and for a short time, twice a week. The programmer
was way over his head, and so was I. I worked on the problem for over
a week, using pencil and paper to do the computations, until I finally
figured out how to handle all the rate changes properly.

Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.

I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.

Paul
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On Wed, 20 Oct 2010 16:45:13 -0700 (PDT), "
wrote:

On Oct 20, 3:36*pm, Karl Townsend
wrote:
On Wed, 20 Oct 2010 12:16:23 -0700 (PDT), "

wrote:
Just a heads up. *If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. *Ten digits, 56
functions for a buck. *I bought one for my grandson.


Dan


In 1972, I got a 90 on a test instead of a 100 because I wasted time
with my slip stick. So, I went out and spent $200 on an SR-10, four
function plus reciprocal. I remember I had just got a raise from 1.60
all the way to 2.30 so it only took two weeks pay.

Karl


You are not the only one, Karl.

Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.

The program had to compute something based on the prime interest rate.
If you remember those years, the prime rate began to change twice a
month, then weekly, and for a short time, twice a week. The programmer
was way over his head, and so was I. I worked on the problem for over
a week, using pencil and paper to do the computations, until I finally
figured out how to handle all the rate changes properly.

Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.

I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.

Paul

About that time, one of the engineers in regional office somehow
managed to get a purchase order issued for one of those. When
management discovered what had been purchased, it was decreed that it
should be locked in the safe when not in use. In 1977, I got a chance
to use it for a couple days and could see that it would be useful my
work but it would never be possible for me to take it home and play
around with it. I bought a Commodore PR100 with 100 program steps,
then, when the TI-59 came out, I got me one. Over the next five years,
I used that calculator regularly, then, I got stuck in regional office
away from the field and rarely used it and when I did need it, the
card reader had packed it in. now I have two of them downstairs
complete with printers, and wouldn't have a clue what to do with
them..
Gerry :-)}
London, Canada
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On Oct 20, 10:55*pm, Gerald Miller wrote:
On Wed, 20 Oct 2010 16:45:13 -0700 (PDT), "



wrote:
On Oct 20, 3:36 pm, Karl Townsend
wrote:
On Wed, 20 Oct 2010 12:16:23 -0700 (PDT), "


wrote:
Just a heads up. If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. Ten digits, 56
functions for a buck. I bought one for my grandson.


Dan


In 1972, I got a 90 on a test instead of a 100 because I wasted time
with my slip stick. So, I went out and spent $200 on an SR-10, four
function plus reciprocal. I remember I had just got a raise from 1.60
all the way to 2.30 so it only took two weeks pay.


Karl


You are not the only one, Karl.


Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.


The program had to compute something based on the prime interest rate.
If you remember those years, the prime rate began to change twice a
month, then weekly, and for a short time, twice a week. The programmer
was way over his head, and so was I. I worked on the problem for over
a week, using pencil and paper to do the computations, until I finally
figured out how to handle all the rate changes properly.


Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.


I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.


Paul


About that time, one of the engineers in regional office somehow
managed to get a purchase order issued for one of those. When
management discovered what had been purchased, it was decreed that it
should be locked in the safe when not in use. In 1977, I got a chance
to use it for a couple days and could see that it would be useful my
work but it would never be possible for me to take it home and play
around with it. I bought a Commodore PR100 with 100 program steps,
then, when the TI-59 came out, I got me one. Over the next five years,
I used that calculator regularly, then, I got stuck in regional office
away from the field and rarely used it and when I did need it, the
card reader had packed it in. now I have two of them downstairs
complete with printers, and wouldn't have a clue what to do with
them..
Gerry :-)}
London, Canada




I was a "starving student" in the early '70's, and when I bought my
texts for the '72 fall semester and had a look in the heat transfer
text, I knew that my slip stick would no longer suffice what with all
those fractional indicies calculations.

Went and bought a Digimatic D8 scientific calculator at Sears for
$Cdn182. 2 years later when doing extensive statistical calcs
(standard deviation calcs are a killer on non-stats machines) the key
pad crapped out and Sears replaced it for free. The boss loaned me an
HP45 calc and it was the cat's meow for the work at hand; but no way
could I justify the $500 or so it cost! One term tuition was around
$600 at that time.

I still have the D8 calc and it works fine.

Wolfgang


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On 2010-10-21, Gerald Miller wrote:
On Wed, 20 Oct 2010 16:45:13 -0700 (PDT), "
wrote:


[ ... ]

Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.


[ ... ]

Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.

I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.

Paul

About that time, one of the engineers in regional office somehow
managed to get a purchase order issued for one of those. When
management discovered what had been purchased, it was decreed that it
should be locked in the safe when not in use. In 1977, I got a chance
to use it for a couple days and could see that it would be useful my
work but it would never be possible for me to take it home and play
around with it.


Where I worked -- about the same time or a bit earlier, the head
honcho of the lab branch where I was got an HP 45 and kept it locked up,
letting nobody use it. He claimed that there was no need for any of his
people to need one.

About that time they were just below $400.00 -- and I decided to
buy one of my own -- with my *own* money.

I kept it on my belt, and took great pleasure in hauling it out
in meetings where he was present and answering questions requiring
calculation -- quite quickly -- to show how useful it was.

I bought a Commodore PR100 with 100 program steps,
then, when the TI-59 came out, I got me one. Over the next five years,
I used that calculator regularly, then, I got stuck in regional office
away from the field and rarely used it and when I did need it, the
card reader had packed it in. now I have two of them downstairs
complete with printers, and wouldn't have a clue what to do with
them..


While I keep an HP-15C and an HP-16C (the computer math one) in
a belt pouch to this day. Some of these days, they will die and I will
not be able to get a replacement. (Apparently, HP has been convinced to
continue the HP-10C (business math), but not the scientific or computer
ones.

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---
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While I keep an HP-15C and an HP-16C (the computer math one) in
a belt pouch to this day. Some of these days, they will die and I will
not be able to get a replacement. (Apparently, HP has been convinced to
continue the HP-10C (business math), but not the scientific or computer
ones.

Enjoy,
DoN.


Pretty much any HP calculator ever produced is available on eBay... just
mention my name and pay cash.

Erik
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DoN. Nichols wrote:
On 2010-10-21, Gerald Miller wrote:

On Wed, 20 Oct 2010 16:45:13 -0700 (PDT), "
wrote:


[ ... ]


Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.


[ ... ]


Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.

I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.

Paul

About that time, one of the engineers in regional office somehow
managed to get a purchase order issued for one of those. When
management discovered what had been purchased, it was decreed that it
should be locked in the safe when not in use. In 1977, I got a chance
to use it for a couple days and could see that it would be useful my
work but it would never be possible for me to take it home and play
around with it.


Where I worked -- about the same time or a bit earlier, the head
honcho of the lab branch where I was got an HP 45 and kept it locked up,
letting nobody use it. He claimed that there was no need for any of his
people to need one.

About that time they were just below $400.00 -- and I decided to
buy one of my own -- with my *own* money.

I kept it on my belt, and took great pleasure in hauling it out
in meetings where he was present and answering questions requiring
calculation -- quite quickly -- to show how useful it was.


I bought a Commodore PR100 with 100 program steps,
then, when the TI-59 came out, I got me one. Over the next five years,
I used that calculator regularly, then, I got stuck in regional office
away from the field and rarely used it and when I did need it, the
card reader had packed it in. now I have two of them downstairs
complete with printers, and wouldn't have a clue what to do with
them..


While I keep an HP-15C and an HP-16C (the computer math one) in
a belt pouch to this day. Some of these days, they will die and I will
not be able to get a replacement. (Apparently, HP has been convinced to
continue the HP-10C (business math), but not the scientific or computer
ones.

Enjoy,
DoN.


How long do you think they'll last?. I bought my first HP-11C in 1982
and it's still going. I though it was an expensive purchase at the time
when all around me were buying cheap Casios, usually the ones with the
extra functions on the flip open cover, but then the cover functions
would start to fail within a year IIRC due to flexing I suspect. I
started using HPs with my dad's old HP45 when he upgraded to a HP41C so
I'll probably be using RPN by choice till I have no other option.
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On Oct 21, 8:21*pm, "DoN. Nichols" wrote:
On 2010-10-21, Gerald Miller wrote:

On Wed, 20 Oct 2010 16:45:13 -0700 (PDT), "
wrote:


* * * * [ ... ]

Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.


* * * * [ ... ]





Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.


I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.


Paul

About that time, one of the engineers in regional office somehow
managed to get a purchase order issued for one of those. When
management discovered what had been purchased, it was decreed that it
should be locked in the safe when not in use. In 1977, I got a chance
to use it for a couple days and could see that it would be useful my
work but it would never be possible for me to take it home and play
around with it.


* * * * Where I worked -- about the same time or a bit earlier, the head
honcho of the lab branch where I was got an HP 45 and kept it locked up,
letting nobody use it. *He claimed that there was no need for any of his
people to need one.

* * * * About that time they were just below $400.00 -- and I decided to
buy one of my own -- with my *own* money.

* * * * I kept it on my belt, and took great pleasure in hauling it out
in meetings where he was present and answering questions requiring
calculation -- quite quickly -- to show how useful it was.

* * * * * * * * I bought a Commodore PR100 with 100 program steps,
then, when the TI-59 came out, I got me one. Over the next five years,
I used that calculator regularly, then, I got stuck in regional office
away from the field and rarely used it and when I did need it, the
card reader had packed it in. now I have two of them downstairs
complete with printers, and wouldn't have a clue what to do with
them..


* * * * While I keep an HP-15C and an HP-16C (the computer math one) in
a belt pouch to this day. *Some of these days, they will die and I will
not be able to get a replacement. *(Apparently, HP has been convinced to
continue the HP-10C (business math), but not the scientific or computer
ones.

* * * * Enjoy,
* * * * * * * * DoN.

--
* * * * * * * * * Remove oil spill source from e-mail
*Email: * | Voice (all times): (703) 938-4564
* * * * * (too) near Washington D.C. |http://www.d-and-d.com/dnichols/DoN.html
* * * * * *--- Black Holes are where God is dividing by zero ---- Hide quoted text -

- Show quoted text -


We actualy have two HP-15Cs Shortly after I graduated I met the girl
who was to become my wife. She was in engineering school and needed
a calculator.

I will bet the diffrence between the HP-10C (buissnes model) and the
15 C guts is a jumper setting.
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On Oct 21, 9:21*pm, "DoN. Nichols" wrote:
On 2010-10-21, Gerald Miller wrote:

On Wed, 20 Oct 2010 16:45:13 -0700 (PDT), "
wrote:


* * * * [ ... ]

Sometime, about 1975,76, or so, I was programming for the bank
processing division of a computer service bureau. One day the manager
of the other half of the company, the non-bank division, asked if I
could look at a program one of the programmers was having trouble
with. Sure, should take just a little while! Right.


* * * * [ ... ]





Can you believe in the very following week I got an ad from HP for
their new HP-55 programmable calculator? If I had had that thing, I
could have solved the programming problem in just a couple of days.
The price was $499.99 for the complete set up, so I ordered it.


I never had reason to use it again. I did program a bunch of trivial
stuff, but nothing special. I sold it 10 years ago to a collector.


Paul

About that time, one of the engineers in regional office somehow
managed to get a purchase order issued for one of those. When
management discovered what had been purchased, it was decreed that it
should be locked in the safe when not in use. In 1977, I got a chance
to use it for a couple days and could see that it would be useful my
work but it would never be possible for me to take it home and play
around with it.


* * * * Where I worked -- about the same time or a bit earlier, the head
honcho of the lab branch where I was got an HP 45 and kept it locked up,
letting nobody use it. *He claimed that there was no need for any of his
people to need one.

* * * * About that time they were just below $400.00 -- and I decided to
buy one of my own -- with my *own* money.

* * * * I kept it on my belt, and took great pleasure in hauling it out
in meetings where he was present and answering questions requiring
calculation -- quite quickly -- to show how useful it was.

* * * * * * * * I bought a Commodore PR100 with 100 program steps,
then, when the TI-59 came out, I got me one. Over the next five years,
I used that calculator regularly, then, I got stuck in regional office
away from the field and rarely used it and when I did need it, the
card reader had packed it in. now I have two of them downstairs
complete with printers, and wouldn't have a clue what to do with
them..


* * * * While I keep an HP-15C and an HP-16C (the computer math one) in
a belt pouch to this day. *Some of these days, they will die and I will
not be able to get a replacement. *(Apparently, HP has been convinced to
continue the HP-10C (business math), but not the scientific or computer
ones.

* * * * Enjoy,
* * * * * * * * DoN.

I have both, also. The 15C was going to get scrapped at work, the 16C
I forked out Big Bucks for back in '82 when it first came out. I was
working with a 36-bit mainframe, so the TI "programmers" calculator
didn't cut it. Needed up to 72 bits for double register ops and
converting EBCDIC to EBCD characters. Not a whole lot of messing with
paper dumps and machine language going on now, so there's probably not
a lot of call for a 16C on the market. Except for programability,
I've also got a $6 Sharp that does just about everything that the 15C
does except it doesn't use RPN. The rechargeable batteries seem to be
the weak spot on those old calculators, those HP "business-card" sized
ones use button cells so will probably keep chugging along as long as
the battery compartment doesn't get leakers.

Stan


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And we bought a 4 banger with reciprocal and memory for (plug in wall)
for ... $600. It was pre any TI or HP calcs. I did logs on it and
trig. I was a Senior Adjunct Professor teaching 3 classes as a second
job. Calc crunching the numbers saved days of hand work.
We had some great apps - paper - methods - in EDN or Electronics back
then. By the middle 70's I was fully computerized doing histograms. :-)

Martin

On 10/20/2010 5:36 PM, Karl Townsend wrote:
On Wed, 20 Oct 2010 12:16:23 -0700 (PDT), "
wrote:

Just a heads up. If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. Ten digits, 56
functions for a buck. I bought one for my grandson.


Dan


In 1972, I got a 90 on a test instead of a 100 because I wasted time
with my slip stick. So, I went out and spent $200 on an SR-10, four
function plus reciprocal. I remember I had just got a raise from 1.60
all the way to 2.30 so it only took two weeks pay.

Karl

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I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)
was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)
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On Oct 21, 11:39*am, Joe Pfeiffer wrote:
I was a senior in high school in 1975... *I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. *Suddenly a Melcor SC-535 (seehttp://www.thimet.de/calccollection/calculators/Melcor-SC-535/Content...)
was available for under $100. *That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)


1982 my parents bought a HP 15C caculator for me as a bithday
present. Prof said my old calc wasn't up for my EE classes. It would
do matrices, complex number atrithmatic and had a iterive equation
solver. Saved me a bunch of time. Three sets of batteris later I
used it today. Havent used anything more complex than Y^X in 20
years.

Now I use Mathmatic for almost everything besides numerical simulation
where MATLAB rules.

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Ah - an Emacs user.

I love the vertical column cut - e.g. the 4th column of numbers cut and
put in the second as an insert.

Martin

On 10/21/2010 1:39 PM, Joe Pfeiffer wrote:
I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)
was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.

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Of all calculators I greatly prefer reverse Polish notation based
ones. They are far more powerful and very intuitive too.

i

On 2010-10-22, Martin Eastburn wrote:
Ah - an Emacs user.

I love the vertical column cut - e.g. the 4th column of numbers cut and
put in the second as an insert.

Martin

On 10/21/2010 1:39 PM, Joe Pfeiffer wrote:
I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)
was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.



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"Ignoramus16025" wrote in message
...
Of all calculators I greatly prefer reverse Polish notation based
ones. They are far more powerful and very intuitive too.

i


I've always preferred HP's with RPN. I like to bring mine to a meeting and
hand it to someone when they need a calculator.


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I have an HP that does both. They (the designers) push you towards
algebraic notion as a standard. Easier to do some things in it so they say.

I use it in the house and my TI in the shop - my cool HP clam box here
in the house. So RPN is in my blood also, but in the ship it is algebra.

Martin

On 10/21/2010 9:13 PM, Ignoramus16025 wrote:
Of all calculators I greatly prefer reverse Polish notation based
ones. They are far more powerful and very intuitive too.

i

On 2010-10-22, Martin wrote:
Ah - an Emacs user.

I love the vertical column cut - e.g. the 4th column of numbers cut and
put in the second as an insert.

Martin

On 10/21/2010 1:39 PM, Joe Pfeiffer wrote:
I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)
was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.

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Martin Eastburn wrote:
Ah - an Emacs user.

I love the vertical column cut - e.g. the 4th column of numbers cut and
put in the second as an insert.

Martin

On 10/21/2010 1:39 PM, Joe Pfeiffer wrote:
I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)

was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.



Qedit (for Windows) still does that.

--

Richard Lamb


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When I was in highschool, my Physics teacher spent a good portion of his
yearly budget on a Heathkit calculator because it did square roots and basic
trig functions.
About the time we finished soldering it together, HP came out their
programmable pocket model (with the magnetic cards) and the prices fell on
all the other calculators.
I he had waited a year he could have bought a fully assembled calculator
with a lot more functions for less than the Heathkit.

Paul K. Dickman

"Joe Pfeiffer" wrote in message
...
I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)
was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)



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I graduated College Physics / Mathematics with a K&E log log duplex
Decitrig and a Vector log log by Dietzgen.

That was in 1969.

Our finals were all day tests in Physics. Typically 4 questions.
We brought lunch and drinks unless we drank coffee. And lots of pencils
and a sharpener and drafting eraser.

Martin

On 10/22/2010 3:18 PM, Paul K. Dickman wrote:
When I was in highschool, my Physics teacher spent a good portion of his
yearly budget on a Heathkit calculator because it did square roots and basic
trig functions.
About the time we finished soldering it together, HP came out their
programmable pocket model (with the magnetic cards) and the prices fell on
all the other calculators.
I he had waited a year he could have bought a fully assembled calculator
with a lot more functions for less than the Heathkit.

Paul K. Dickman

"Joe wrote in message
...
I was a senior in high school in 1975... I'd had my good K&E bamboo
slide rule for about a couple of months when the first great price crash
for calculators hit. Suddenly a Melcor SC-535 (see
http://www.thimet.de/calccollection/...5/Contents.htm)
was available for under $100. That calculator got me most of the way
through undergrad...

Now, of course, the two calculators I use are a mode in emacs and an
application on my phone.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)





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"Martin Eastburn" wrote in message
...
I graduated College Physics / Mathematics with a K&E log log duplex
Decitrig and a Vector log log by Dietzgen.

That was in 1969.

Our finals were all day tests in Physics. Typically 4 questions.
We brought lunch and drinks unless we drank coffee. And lots of pencils
and a sharpener and drafting eraser.

Martin



I still remember lubricating the K&E with Talcum Powder.
Of course, I used too much!!!

--
Peter DiVergilio
"A bumblebee flies faster than a Kubota tractor"

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Martin Eastburn wrote:
..
I he had waited a year he could have bought a fully assembled calculator
with a lot more functions for less than the Heathkit.

Paul K. Dickman


At least from when I started looking at them, "saving money" didn't seem
to be a feature of a Heathkit product. Given the amount of work
involved, the savings would be negligible. Seems like they were at
least 70% of a retail product, if not more than one.

Bill
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Karl Townsend wrote:

On Wed, 20 Oct 2010 12:16:23 -0700 (PDT), "
wrote:

Just a heads up. If you want a calculator in your tool box, it would
be hard to beat the price of one from Dollar Tree. Ten digits, 56
functions for a buck. I bought one for my grandson.


Dan


In 1972, I got a 90 on a test instead of a 100 because I wasted time
with my slip stick. So, I went out and spent $200 on an SR-10, four
function plus reciprocal. I remember I had just got a raise from 1.60
all the way to 2.30 so it only took two weeks pay.


I had a SR-51II that was stolen while I was stationed at MCAS Beaufort, it was replaced
with a SR-56 that was a lot of fun to play with back then. Hey at least I had something I
could program. Sucked having the program go away when you turned it off.

Ah the days of red leds.

Now I use easycalc on my Palm T|E. It isn't programable but you can create your own
functions.
http://easycalc.sourceforge.net/

I just wonder how much longer I can stay on a palm platform. I guess my replacements will
be from ebay.

Wes

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