General > General Technical Chat
Do you still use stand-alone ("pocket") calculators?
SiliconWizard:
SwissMicro products are very good. I do not like the keys as much as with the old HP's, but I guess no one else has really managed to do better anyway.
SiliconWizard:
--- Quote from: johnboxall on May 22, 2023, 08:34:55 am ---
--- Quote from: RoGeorge on May 22, 2023, 08:25:52 am ---
--- Quote from: johnboxall on May 21, 2023, 12:25:24 pm ---Yes. I spend a few hours a day in an environment where we can't have any radio signals, static, etc. So I take in a HP 35s.
--- End quote ---
Is HP35s in a metal enclosure, or do you just turn it off during measurements?
--- End quote ---
It has a plastic enclosure. I usually turn it off after use, more of a reflex/OCD thing than anything.
--- End quote ---
You can have a look at the internals here: http://www.finetune.co.jp/~lyuka/interests/calc/hp35s/
There is relatively little doubt it has very low emissions. There is an internal shield, no sign of a switching power supply (that I can see at least) and the external oscillator is 32.768kHz.
And the display is simple LCD, no TFT, no OLED.
blacksheeplogic:
I switched to the new TI-30X Pro. It is a lot faster than the older TI36X Pro similar to the Casio 991EX/991DEX.
I don't need anything more than the TI30X Pro provides, sits on my bench, takes up little space, is quick & convenient.
Conrad Hoffman:
I love scientific calculators and RPN rules, but I mostly use an app on the PC these days for RPN. "Calculator.net" was the one, but the website is gone. You can still find it if you search around. I keep a TI30 in the machine shop because you always need one there and I don't care what happens to it. At the desk I have several classic HPs but also like the Sharp EL506W or similar. In my briefcase I keep an RPN and a Sharp EL-W516. The Sharps are inexpensive and do just about everything. Also have a few slide rules for backup.
Mr.B:
I have an HP50g for when I need it.
Otherwise normally use “RealCalc” in RPN mode on my Android phone.
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