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Pens and Calculators

alfredop

By alfredop
in Pictures & Pen Photography

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Titivillus Donor Pen

Titivillus

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QUOTE (helius @ Feb 27 2007, 07:29 AM)
I'm probably dating myself here, but my Hewlett Packard 48G was the best purchase I ever made during my undergraduate career. It was worth its weight in gold, probably more. happycloud9.gif happycloud9.gif happycloud9.gif

I've been using my 48 for years but I started off with a 15C and sold it to fund another calculator and have regretted it ever since.

 

But my Brother in law gave my wife a calculator that he got in a box lot at an auction that he couldn't get to work.......it was a 15C biggrin.gif he paid $10 for the box of stuff biggrin.gif

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PhatMan Mint

PhatMan

Posted
Posted

alfredop,

 

Nice shots :)

 

I stll have my old HP-45 calculator, which at the time cost me more than did my second hand Ford Cortina car !!

 

Have fun !

 

regards

 

Russ

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sexauerw Collectors Item

sexauerw

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Here's my favorite calculator with a couple of my older pens. What can I say, some of us never grow up!

http://i77.photobucket.com/albums/j66/sexauerw/Pentrace%20Sundays/TycoCalculatorwith2LamySafaris.jpg

Bill Sexauer
http://bulk-share.slickpic.com/album/share/zyNIMDOgTcgMOO/5768697.0/org/p/PCA+++Logo+small.jpghttp://bulk-share.slickpic.com/album/share/zyNIMDOgTcgMOO/5768694.0/org/p/Blk+Pen+Society+Icon.jpghttp://bulk-share.slickpic.com/album/share/TE3TzMUAMMYyNM/8484890.0/300/p/CP04_Black_Legend%2C_Small.jpg
PCA Member since 2006

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bernardo Collectors Item

bernardo

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Posted (edited)

Lamy ABC and HP-41CV on a Moleskine notebook.

I own the HP since 1990 and still use it, occasionally.

Edited by bernardo
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bernardo Collectors Item

bernardo

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Lamy ABC and HP-41CV on a Moleskine notebook.
I own the HP since 1990 and still use it, occasionally.

fpn_1397427011__327912_2517818419532_188

 

And a HP-11C with a Faber-Castell Grip pencil

fpn_1397427087__327675_2621259445493_202

 

Both calculators are among the all-times best, and the writing instruments too! ;)

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onepuff Near Mint

onepuff

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Snap with your 11C. Both pen and calculator live on my desk.

http://i1214.photobucket.com/albums/cc488/lastx1/calculator.jpg

Edited by onepuff
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sexauerw Collectors Item

sexauerw

Posted
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I do have a number of calculators. Here is another Lego-style calculator along with one of my most useful calculators. The Radio Shack calc does math in binary, octal, decimal or hex (with instant conversions from any base to any other one) and is a programmer's dream. It also handles angles in degrees, radians or grads, and coordinates in Cartesian or polar notation, with easy conversion between the two.

 

The red pen is an S. T. Dupont Vertigo and the black and green one is a Pelikan M1000.

 

http://bulk-share.slickpic.com/album/share/kD0OOukuOQAuAl/7845749.0/800/p/Two_Pens_and_Two_Calculators.jpg

Bill Sexauer
http://bulk-share.slickpic.com/album/share/zyNIMDOgTcgMOO/5768697.0/org/p/PCA+++Logo+small.jpghttp://bulk-share.slickpic.com/album/share/zyNIMDOgTcgMOO/5768694.0/org/p/Blk+Pen+Society+Icon.jpghttp://bulk-share.slickpic.com/album/share/TE3TzMUAMMYyNM/8484890.0/300/p/CP04_Black_Legend%2C_Small.jpg
PCA Member since 2006

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bernardo Collectors Item

bernardo

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Snap with your 11C. Both pen and calculator live on my desk.

http://i1214.photobucket.com/albums/cc488/lastx1/calculator.jpg

 

Your calc looks in great shape, congrats! :thumbup:

Some say the HP-11C is the best calculator ever, or al least that it makes the top 5. Do you agree?

 

PD: The Pel looks nice too!

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onepuff Near Mint

onepuff

Posted
Posted (edited)

 

Your calc looks in great shape, congrats! :thumbup:

Some say the HP-11C is the best calculator ever, or al least that it makes the top 5. Do you agree?

 

PD: The Pel looks nice too!

I think the Voyagers are certainly among the best calculators ever made due to (to my mind) the ideal landscape form factor, the build quality, the long battery life, the good range of functions and the accuracy of the algorithms. I love using RPN and the HP calculators from the late 70s and 80 (from the 41C to the Saturn series) are for me the pinnacle of calculator design. The only thing I would add to the 11C is the complex number handling of the 15C or 42S - then it would be ideal. As a daily number cruncher the 11C is nearly as good as it gets though.

 

What year is yours? Mine is an early one from 1981 with "the bug".

 

The 400 is an early 50s model with a semi-flex medium nib and is one of two pens I use daily (and my favourite of the two). It's usually filled with R&K Salix.

Edited by onepuff
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bernardo Collectors Item

bernardo

Posted
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I think the Voyagers are certainly among the best calculators ever made due to (to my mind) the ideal landscape form factor, the build quality, the long battery life, the good range of functions and the accuracy of the algorithms. I love using RPN and the HP calculators from the late 70s and 80 (from the 41C to the Saturn series) are for me the pinnacle of calculator design. The only thing I would add to the 11C is the complex number handling of the 15C or 42S - then it would be ideal. As a daily number cruncher the 11C is nearly as good as it gets though.

 

What year is yours? Mine is an early one from 1981 with "the bug".

 

The 400 is an early 50s model with a semi-flex medium nib and is one of two pens I use daily (and my favourite of the two). It's usually filled with R&K Salix.

 

Mine is from 1987. What bug is that? I didn't know early 11C's had one.

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onepuff Near Mint

onepuff

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Mine is from 1987. What bug is that? I didn't know early 11C's had one.

If you type 0.0x... where x... is any number then press backspace to delete the number then press enter the calculator returns 1.0 which is incorrect. It's an obscure bug that only affect the earliest production models. I'm not sure exactly when the bug was corrected but certainly within the first year. Telling of the difference with Hewlett Packard of old the company offered to replace buggy units with new bug-free ones for any owner who wished this at the time. They surely wouldn't do that now.

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bernardo Collectors Item

bernardo

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If you type 0.0x... where x... is any number then press backspace to delete the number then press enter the calculator returns 1.0 which is incorrect. It's an obscure bug that only affect the earliest production models. I'm not sure exactly when the bug was corrected but certainly within the first year. Telling of the difference with Hewlett Packard of old the company offered to replace buggy units with new bug-free ones for any owner who wished this at the time. They surely wouldn't do that now.

 

Just to be sure, I checked my 11C and my two other RPN HP's for this bug; fortunately, none of them has it :)

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abritdownunder Mint

abritdownunder

Posted
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An HP graphics calculator paired with a Conway Stewart Churchill:

post-110005-0-34579400-1398149573_thumb.jpg

The journal is designed for use with a LiveScribe smart pen, loved the idea of a high tech smart pen, hated using it. The journal is terrible with fountain pens but just about ok for work.

Regards,

Kevin

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bernardo Collectors Item

bernardo

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An HP graphics calculator paired with a Conway Stewart Churchill:

attachicon.gifIMG_0262.jpg

The journal is designed for use with a LiveScribe smart pen, loved the idea of a high tech smart pen, hated using it. The journal is terrible with fountain pens but just about ok for work.

 

How do you like the Prime?

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abritdownunder Mint

abritdownunder

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How do you like the Prime?

I love the Prime, it's certainly a great upgrade to my old graphing calculator. The colour touch screen is very crisp and clear, and makes exploring graphs so easy. It's incredibly fast, with a 400MHz ARM processor, it's as powerful as the desktop PC I was using 10 years ago. I love the CAS entry system and am very happy they kept the RPN system. I was looking at the Prime and the TI-Nspire and am very happy I chose the Prime!

Regards,

Kevin

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bernardo Collectors Item

bernardo

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I love the Prime, it's certainly a great upgrade to my old graphing calculator. The colour touch screen is very crisp and clear, and makes exploring graphs so easy. It's incredibly fast, with a 400MHz ARM processor, it's as powerful as the desktop PC I was using 10 years ago. I love the CAS entry system and am very happy they kept the RPN system. I was looking at the Prime and the TI-Nspire and am very happy I chose the Prime!

 

Thanks, good to know. It may be my next calc ;)

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bernardo Collectors Item

bernardo

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I'm really liking this Section of the forum, some photos are very beautyful. Here there are some shots taken by me putting together some calculators and some pens. Unfortunately the quality is not very high.

 

From the 70': (Parker 75 + HP-41C)

 

http://i178.photobucket.com/albums/w253/gennyesposito/IMGP1030.jpg

 

From the 90': (Rotring 600 + HP48GX)

 

http://i178.photobucket.com/albums/w253/gennyesposito/IMGP1034.jpg

 

Today: (Palm Treo 680 + Rotring Esprint BP with a stylus)

 

http://i178.photobucket.com/albums/w253/gennyesposito/IMGP1041.jpg

 

Ciao

Genny

 

 

Love the HP-41C !!!

I had a 48G and never really found a good use for it; its keyboard looked pretty cumbersome to me...

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bernardo Collectors Item

bernardo

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Since it seems that you like HP calculators, I'm posting another couple of photos.

 

First photo is a cheap OMAS DS pen (strange, but there existed cheap omas) with a HP-19BII

 

http://i178.photobucket.com/albums/w253/gennyesposito/IMGP1046.jpg

 

Second photo is a Zenith 15 (??), I bought in Warsav when I was student (just before the collapse of comunist government there), with a HP-28C

 

http://i178.photobucket.com/albums/w253/gennyesposito/IMGP1048.jpg

 

Genny

 

 

Got a 19BII recently; I'm quite impressed by its capabilities.

The HP-28C/S is still on my wishlist... ;)

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