HP41 display for DM41?

General discussion about calculators, SwissMicros or otherwise
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Walter
Posts: 3070
Joined: Tue May 02, 2017 11:13 am
Location: On a mission close to DRS, Germany

Re: HP41 display for DM41?

Post by Walter »

Walter wrote:
Fri Jan 26, 2018 10:47 am
IIUYC, then you want an outdated display for nostalgic reasons, don't you? If I'd be a company, I'd let engineering estimate the coarse costs to fulfil your wish, multiply by pi, and offer you that price.
CarlRav wrote:
Sat Feb 03, 2018 3:16 pm
Why not? Would that require too much work or is it simply impossible from the technical standpoint?
As Massimo showed, it's possible. :) I just think it would be a massive step back compared to the opportunities modern dot matrix LCDs offer. A step back causing much work (HW- and SW-wise) and no benefit beyond curassing nostalgia. :roll: If somebody would force me doing something like that, I'd let him pay for it. 8-) YMMV of course.
WP43 SN00000, 34S, and 31S for obvious reasons; HP-35, 45, ..., 35S, 15CE, DM16L S/N# 00093, DM42β SN:00041
Keemani 09
Posts: 1
Joined: Sat Sep 03, 2022 12:54 am

Re: HP41 display for DM41?

Post by Keemani 09 »

Yes you are right, old is gold. :D
I found Phenq very helpful in my journey
toml_12953
Posts: 795
Joined: Wed May 03, 2017 7:46 pm
Location: Malone, NY USA

Re: HP41 display for DM41?

Post by toml_12953 »

Walter wrote:
Fri Jan 26, 2018 10:47 am
IIUYC, then you want an outdated display for nostalgic reasons, don't you? If I'd be a company, I'd let engineering estimate the coarse costs to fulfil your wish, multiply by pi, and offer you that price.
And I'd pay it gladly! Many people (you included) seem to underestimate the power nostalgia has. If someone created an HP 9100b using modern circuitry but had the same desktop form factor, could read and write the same mag cards and display the same green characters as the original, they'd make a small fortune! The key is having it look and operate exactly the same as the original experience. This is why, although I own one, I don't use the SM version of the 41CX very often. The big attraction would be if it could use the original HP peripherals.
Tom L

Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
ctrclckws
Posts: 173
Joined: Sun Feb 17, 2019 4:30 pm

Re: HP41 display for DM41?

Post by ctrclckws »

Nostalgia, and old is gold!

HP seems to have understood that for the HP-12C.
A user can pick up any generation of the 12C and know what to expect.

The newer versions are SO much faster than the originals, though.

There is a program from Katie Wassermann to calculate 70 digits of Pi on the 12C.
80's era takes about 90 minues.
2018 China, takes about 50 seconds.

2019 and 2021 with different firmware, both get Error 0.

Amazing.
DM10, DM10L: 00031 / DM11, DM11L: 00112 / DM12, DM12L: 02074
DM15, DM15L: 11069 / DM16. DM16L: 02001 / DM41, DM41L: 00859
DM41X: 00036ß / 00181 DM42: 3108 / 6084 WP43: 0032
redglyph
Posts: 177
Joined: Sat Dec 22, 2018 11:45 am

Re: HP41 display for DM41?

Post by redglyph »

Well, anyone buying a DM41L is bound to do it by nostalgia. ;) There are much more modern, powerful and convenient calculators available these days. Although removing the HP-50g was a mistake, the Prime is just not reliable enough to replace it and it's a student-oriented calculator.

So it may as well feature the segment display, but making a custom 12-digit 14-segment display must be much more difficult to handle in a project than using an existing matrix one. So I think it's not just a cost concern (even though it's likely much more expensive).

But I think the font of the DM41X is not too far off?
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