Arrgh, the battery cover is screwed... >_<;;

I've got both a 28C and a 28S and they're both in perfect condition, complete with manuals. Despite the poor screen, they're still my favourite calculator and I never use anything else.

quite nice beast still;

man i didnt even know i liked calculators like that.

I began my career in the early 80's doing IBM assembly language programming. I also worked on a Z80 based check repair machine. I bought a CM-100 when they first came out. I used mine pretty extensively until I moved to higher level languages later on. It still works fine even thought the case cracked long ago and was epoxied.

Someone in the comments mentioned the idea of changing the keys. That may be possible, but it may not be necessary. Look at the functions on the keys themselves, ignoring the yellow and blue shifted functions. These are basic functions we would find on most HP calculators. Perhaps if the community could agree on a standard set of keys, that device could become a generic platform for all of the various projects being developed. Swiss Micro could sell the calculator with the basic key set and operating system but without a faceplate or software. The projects would have to provide their custom faceplate, ROM image, and optionally a bezel. Right now the DM42 is being used as a base platform for these projects, but IMO having two shift keys like the DM32 has is a better format. I understand it may be difficult for existing projects to convert their software to run on the new CPU, so it may be some time before any of this could happen.

If you know of any surveying programs for the 42, could you let me know.

I have a question. Could you help me, please? There is a programm which is wrote on a paper inside your video. My question is about a character in this programm. What is the touch on the fx4000P, to write the fourth caracter at the third line. This is the caracter just before "Goto 4" that I'm searching. I think that it is the touch which is the first column on the left on the fx4000p, and at the fifth line. Is it right, please?

I got mine. The touch of the keys is cheap-ish and nothing comparable to the original. I guess the software is better, but is this really the point?

i have classwiz cw calculator most useless not worth so difficult to use and not useful in numerical analysis so i hate it if anyone want i will sell it

I had one of those back in the day. I never had any problems with the hardware but never learnt of the HIR functions.

How to type raise to power

Great video! Do one for the CASIO FX-5200 please.

Hello. Can anyone help me with a diagram of the power supply, on an Underwood 280, which should be the same as the Olivetti Divisumma 28. I have collected quite a few old calculators as I have been repairing them since 1973. I would be very happy, if anyone can post a link. I have also sold many Olivetti calculators and typewriters Vh Erik Hansen, Denmark.

My God this is beautiful. My first HP was an hp48, I never really got into the forerunners, but they were clearly amazing machines built with love. And this is just an amazing homage. The hp48, especially with the metakernel system, would be one heck of an undertaking, but I'd probably have to buy one immediately.

By the looks of it: those are not e-ink, but Sharp memory LCD displays

Wow, 220 quid for a calculator!

I have fx19 , and is confusing in some points. Fx39 beeing the way !

I still use my HP32 on most days. I got it to replace my student HP33E sometime in the mid 90s. And I managed to get my employer to pay for it! I must say that I never really used it to the fullest as I did all of my heavy calculations using spreadsheets. I’m retired now, so there is no way I could justify buying one of these, but I would if I could…

Great to find this channel and SwissMicros. Nice to see HP RPN living on. Great geek tech never dies, it just gets Re-tro-vitalized! 🙂

Had the HP 16c

This is great! The 32sii was my favorite calculator. I had two of them. The dog destroyed one of them, and I had several keys eventually stop working on the other. I'm definitely going to check this out

I wonder, why not use e-ink screen in such calculators?

I do my calculations with a hp11c since decades. But this looks promising, maybe i switch?

bom dia, estacalculadora está a venda/ quantocusta?

But present time 991 ex original calculator has become very rare to find.

Hi everyone, I’ve just got a CASIO 7000G calculator in mint condition from eBay with original box, the two manuals, soft carry bag and the Calc itself with fresh bats for $29 dollars. Long time sought after by me in that precise condition.

I love my old HP48GX that I bought while in engineering school, so now I have Droid48 running on my Phone and it is free. Sorry no sale.

Can it play Doom? Otherwise I'm not interested.

Swiss Micros should be proposing an hardware upgraded version of it's base: rechargeable battery (through USB-C), better screen (larger, color, etc.), more internal storage, ... And then add "personalities" through keyboard bezels and firmware, to be able to go from a 41CX to a 67 or anything else under the sun with the same format. Maybe be able to have different personalities loaded, and be able to switch, each one with its own dataset.

Thanks for the review. Just wonder why the log and 10^x not the same key like other standard HP calculators?

I love the 15C. I bought the 15C Limited Edition and that thing bricked itself. My old 15C still works.

My guess is you would still recommend the DM42, given it is more capable and can become a C47, or maybe not. The states are interesting and more functionality is immediately accessible. Thoughts?

The problem with RPN calculators, and the main reason I switched to a TI-89 years ago, is the lack of calculation history. The calculator displays the result but forgets how it got there. You can't go back and revisit your calculation "That doesn't make sense, What did I put in?" To deal with this in an inexpensive package, I recommend the Sharp EL W516. I bought a HP35 back in 1972, It was wonderful and I continued with the HP65. 67, and the HP41. I loved my RPNers but now RPN is obsolete, I had to move on. I can't recommend this DM32. Time to move on. Sigh. Cheers.

12C is a Companion for 20+ years. I like Sales calculation and Depreciation which is very quick.

can you check what answer you get for the cube root of -8?

20:20 Yes, I can't agree more! The 35s was a missed opportunity and thankfully Swiss Micros was there to pick up that dropped ball, and run with it

250€ for nothing more than a mid-rsnge cientific calc???.....there are power for more, the OG HP33s is a better option than a good construction option

Thanks for the video, great as always! Excited for the C47 as it is developed further. It has great potential, but I have to say, right now the general display update speed needs to be worked on. This is running on DM42, it should be much faster, and it detracts from the experience. Definitely looking forward to your video on DB48X!

That pcb is like one from a hobbyist project

My favorite features of the DM32 are the state files and the four line display.

TOPNOTCH QUALITY! RPN should be the standard( put in the numbers first and then tell the C what to do with them) in schools, better understanding and a 30% timesaver on keystrokes / please do not say this is the last of the great calculators i guess this can very well be a new trend. maybe the company should make some apps available for kids so to play with numbers and get the idea.......

Can you turn off the silly picture?

Hp32s is my calculator since 1987 when i start my electronic technician course, and and after that on my electrical engineering, with exception of 2 disciplines that i loan an hp48. Im glad that swissmicro make the evolution of this calculator, for me it is the best calculator hp made. Of course the dm32 batteries will not stand for years as hp32, but i see that rechargeable battery is a good replacement for that feature. Overall the new DM32 is the best calculator if you use the hp32 and always struggled on putting more programs on his 390 bytes of memory. Regarding the price, in 1986 it is around 70.00 (around 200.00 today) , a small batch product with much more functionality the price is ok.

I keep clearing my throat when listening to you speak 😮

Got an original from my grandpa. Gotta get new batteries today

More capable hardware with less capable software! Swiss Micros do like to make it difficult to decide which version to buy! I really wish they would give some attention to making a multi-personality keypad. With minor design tweaks and a commitment to supply, it ought not to be that difficult. Make the key-tops exchangeable, add some overlay retention features and supply overlays and key-sets so the DM32 hardware can be converted to run DM41X or DM42 firmware comfortably. Enable third parties to make conversion kits for their own firmware such as Christophe's DB48X.

The 32sii is one of my favourites.

Let us know when they're going to make a DM48 - just one more row of keys and some programming that is already being developed by Christophe de Dinechin.