These were being used when I first started, at least one of them was at the office I started at, along with a 32SII and an HP20S. The two owners in the office has these, and the owner that ran a crew had an HP41 with the survey pac he used.
Which one of the 11C and 15C was more widely used? I was just wondering.
Thanks,
Jimmy
I have a 11C purchased in 1982 for $105 new.
Never used a 15C. I believe that It had more programming space and statistical functions. it cost more.
Used all of the 41s, C,CV and CX.
I use an 11C every day and love it. It's the only calculator that I have that never goof's up when entering lots of numbers quickly.
imaudigger, post: 425166, member: 7286 wrote: I use an 11C every day and love it. It's the only calculator that I have that never goof's up when entering lots of numbers quickly.
I wore out several 11C calculators. I probably used them for a longer period of time than I did using the 41s and 48s. The 11C fits perfectly in a workshirt front pocket.
My father passed away in '93. At that time he also used an 11C. My mother passed in '09 and at that time I cleaned out the old homestead and sold the place. While cleaning out I found an old shoebox with my father's LS and PE crimps, some odd papers and his 11C. I pushed the button and it turned on.
I have it sitting here by my keyboard and use it daily, but briefly.
I have not replaced the batteries in it and there is no doubt in my mind the batteries that are still in it are pre-1993. They just don't make things like they used to.
I would suggest pulling the battery cover off and make sure the battery isn't leaking!
That would be a shame.
11c. Now use the app on my iPhone. It even makes the same button clicking noise! Jp
Jimmy Cleveland, post: 425153, member: 91 wrote: These were being used when I first started, at least one of them was at the office I started at, along with a 32SII and an HP20S. The two owners in the office has these, and the owner that ran a crew had an HP41 with the survey pac he used.
Which one of the 11C and 15C was more widely used? I was just wondering.
Thanks,
Jimmy
I have a 15C that I still use every day. I bought it new in 1985 for $85, mainly for the continous memery capability in order to carry slope calculations when laying out the grade for irrigation ditch locations for a client so I didn't have to write every point in a field book. I've only had to replace the batteries, as I recall, maybe 5 or 6 times at the most. When I was in Oregon in 1989, I bought a program for it to run calc's for proposed roadways for a planned golf course/housing unit. I was using my HP 65 to do this, but due to the rainy season, changing cards to perform the calc's under the jacket of my rainsuit was a pain in the rear. With the program for the 15C, I could do the calc's and store the coordinates and recall the one I needed . The 65 required writing the coordinate in a Rite-In-The Rain field book and re-entering every time I needed to change a card to do a traverse or inverse.
The back with the examples is getting a little worn. The original soft case wore out many years ago and my wife made me a case out of plastic canvas, with a soft lining and whatever the stuff is that plastic canverses us to make their designs out of.
Still use my 11c daily.
Which one of the 11C and 15C was more widely used? I was just wondering.
Thanks,
Jimmy
I had one of each, either one was great. I loaned my 11c to my daughter and it was stolen out of her locker at school.:( I still use the 15c all the time.
Robert
I remember one Christmas I really wanted a scientific calculator. Growing up, we didn't have a lot of money, but we never went without. Sure enough, I received a Casio scientific calculator for Christmas. I was thrilled. I used it all the time in junior and senior high school. It, along with another scientific calculator, were stolen out of my locker my senior year. I was heartbroken. It's weird how you get "attached" to something like that.
HP 15C is my favorite of the two. I have a number of HP calculators. 71B, 97, 15C, 41CX, numerous 48GX's and I have the emulators for 15C, 41, 67 and 48 on my android phone. All are programmable just like the actual calculator, but my phone is faster than the original, being that it has an eight core processor. I get along with on RPN calculators these days. I abhor algebraic calculators. RPN is much more efficient for almost any calculations. Thanks to HP for making them. I just wish they would still fix them. Carry On. OBTW I also have a 35s. It has no rectangular-polar conversion, but used complex numbers to approximate the conversion. Still have not programmed it, even though I have had for over 9 years.
I never had an 11c or 15c, but I love my 35s.
15C around the office
HP41CX app on my S5 is used the most
My old boss, Albie, use to challenge us young bucks (young in 86) to calculation wars. "I can calc anything you can calc on that 41 just as fast as with my 11c". He did real well until the HP48 came out. 🙂 Good memories. Jp
I bought a 15C to go back to school for my MS in 1981, and won one as a door prize about 1983. They both still work and at least one of them gets used quite often. They have only had 2 or 3 battery changes apiece. One of the best and most durable products of any kind I've ever used.
The 15C has complex number and matrix capability that I found rather cumbersome when I was working with such. I could have gotten along without those. On the other hand, the biggest improvement they could have made wwould have been to include a normal distribution tail function that was accurate out to many decimals.
Cut my "Surveying Teeth" on this:
Still have it along with case and charger and manual and it works too! 😎
FL/GA PLS., post: 425227, member: 379 wrote: Cut my "Surveying Teeth" on this:
Still have it along with case and charger and manual and it works too! 😎
I have an old HP35 here with all the rest of my junk. I never bought it and I'm thinking it's a leftover from my father's stuff.
Funny memory:
The first digital calculator with trig functions that I remember Pops buying was a TI-30 I think. I caught him one afternoon at his drafting table with a "Six Place Tables" reference book. He was calcing various trig functions with the TI and "checking" it against the book.
A fella's got to run checks you know...;)
I had a 15C, purchased when it was first released. I may still have it somewhere. I kept a few pages in my field book with my programs.
I also had the rest of the HP fleet of handhelds, but it was probably my favorite of all of them. It lived in the breast pocked of my vest.
Jimmy Cleveland, post: 425153, member: 91 wrote: These were being used when I first started, at least one of them was at the office I started at, along with a 32SII and an HP20S. The two owners in the office has these, and the owner that ran a crew had an HP41 with the survey pac he used.
Which one of the 11C and 15C was more widely used? I was just wondering.
Thanks,
Jimmy
11c. Worked perfectly for many years until I left it out in the rain overnight. Still works, but some of the lcd segments are flaky. Use the iPhone 11c app now because i always have it with me. Have the 15c app too, lol, but hardly ever use it.
Sold my 11c to force myself into a 35 for exams. Disallowing the legacy HP line was a bonehead move.
