Calculators I actually use.

[knife31]

Hi everyone
I was looking at my collection and there’s a couple I don’t use at all. So decided to make a list of ones that I actually use for work, etc.…
1970’s thru 1980’s: HP-45, HP-11C, Jeppeson CR-2 Flt Computer (Circular Slide Rule).
Late 80’s thru early 90’s: HP-11C, HP-42
Mid 90’s thru 2000: HP-11C, Military E6B
Home Office: HP-42
Garage Office, HP-28S, HP-35S
On my person : (Depending on the day) HP-11C, PX11C/15C, Hemmi 32 Slide Rule, and now the DM15C Credit Card Calc.
Calc I use the least HP-18C
Calc used most for fun: HP-41CV
Wife uses a HP-12C. (she was at work and the big boss from corporate walked by and said “Wow you use a HP”, upped here creds with the staff.
For the ones that are just in my collection I need to start rotating them or at least pull the batteries.
Randy

[Maximilian Hohmann]

Hello!

(Yesterday 07:35 PM)knife31 Wrote:  So decided to make a list of ones that I actually use for work, etc.…

My list is quite short compared to yours. The only one I really use is the smartphone app shown below that can add and subtract times (and nothing else). I only need that at work, so I don't make stupid mistakes when filling in logbooks. I would prefer to have it in hardware, but unfortunately nothing like it was ever made.
Of the other 1,000 calculators, I don't really us any, apart from occasionally trying one out, but this is all. What a waste of keys and displays!

Regards
Max

[John Garza (3665)]

Almost all of my machines are in storage.
Most of my mathematical work is done on spreadsheets these days, not calculators.
I do keep a small assortment of restored machines on hand in case I have the urge to use one or write a program. But that falls more under 'recreation' than anything else.

-J