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+--- Thread: HP 28S (/thread-2281.html)
HP 28S - marc556 - 10-12-2014 04:49 PM
Dear all,
I used a HP 28S during the 80's at school....
In 1992, I lost my calculator in Spain (during olympic games).
After that I bought a Casio and used it years and years.
But Last week, I decided to buy a second hand 28S... to go back in the past!
I received it last friday!
It works perfectly but the battery cover is broken....
Do you have a solution ? Probably 3D printing?
Please help
Best regards from Luxemburg to all of you
Marc
RE: HP 28S - aurelio - 10-12-2014 07:17 PM
Hi Marc, read this previous post please
regards
(10-12-2014 04:49 PM)marc556 Wrote: Dear all,
I used a HP 28S during the 80's at school....
In 1992, I lost my calculator in Spain (during olympic games).
After that I bought a Casio and used it years and years.
But Last week, I decided to buy a second hand 28S... to go back in the past!
I received it last friday!
It works perfectly but the battery cover is broken....
Do you have a solution ? Probably 3D printing?
Please help
Best regards from Luxemburg to all of you
Marc
RE: HP 28S - Nigel (UK) - 10-13-2014 10:25 AM
(10-12-2014 07:17 PM)aurelio Wrote: Hi Marc, read this previous post please
regards
Marc: I bought a couple of the wrap-around metal strips and they work well. Before I got them I simply snipped a thin piece of steel to size and slid that into place - that worked too. The advantage of the strips is that they work even if the sides of the opening into the battery compartment are damaged.
Nigel (UK)
RE: HP 28S - Dave Britten - 10-14-2014 09:18 PM
The solution is a 48SX.
RE: HP 28S - Raymond Del Tondo - 10-15-2014 09:04 PM
(10-14-2014 09:18 PM)Dave Britten Wrote: The solution is a 48SX.If you want a display contrast similar as good as on the 28S, I'd recommend an 48GX (latest incarnation with high contrast LCD) instead;-)
RE: HP 28S - Dave Britten - 10-15-2014 10:40 PM
(10-15-2014 09:04 PM)Raymond Del Tondo Wrote:(10-14-2014 09:18 PM)Dave Britten Wrote: The solution is a 48SX.If you want a display contrast similar as good as on the 28S, I'd recommend an 48GX (latest incarnation with high contrast LCD) instead;-)
Surprisingly, the 48S(X) actually has better contrast than the GX in situations where it's viewed from a low angle, e.g. on your desk within arms' reach. The GX screen gives you a weird shadow/ghosting effect from those angles. That's the main reason I keep a 48SX on my desk at work.
RE: HP 28S - brouhaha - 10-16-2014 03:35 AM
(10-15-2014 10:40 PM)Dave Britten Wrote: Surprisingly, the 48S(X) actually has better contrast than the GX in situations where it's viewed from a low angle, e.g. on your desk within arms' reach. The GX screen gives you a weird shadow/ghosting effect from those angles. That's the main reason I keep a 48SX on my desk at work.
I'm apparently in the minority, but I like the keyboard layout of the 48S/SX better than that of the 48G/GX. I especially didn't like the loss of "VISIT" from the keyboard. I also didn't like losing the intuitive grouping of last stack/arg/cmd/menu.
RE: HP 28S - Paul Dale - 10-16-2014 04:16 AM
(10-16-2014 03:35 AM)brouhaha Wrote: I'm apparently in the minority, but I like the keyboard layout of the 48S/SX better than that of the 48G/GX.
I prefer it too.
- Pauli
RE: HP 28S - Steve Simpkin - 10-16-2014 11:00 AM
(10-16-2014 04:16 AM)Paul Dale Wrote:(10-16-2014 03:35 AM)brouhaha Wrote: I'm apparently in the minority, but I like the keyboard layout of the 48S/SX better than that of the 48G/GX.
I prefer it too.
- Pauli
Me too.
RE: HP 28S - Maximilian Hohmann - 10-16-2014 11:15 AM
(10-16-2014 11:00 AM)Steve Simpkin Wrote:(10-16-2014 04:16 AM)Paul Dale Wrote: I prefer it too.
- Pauli
Me too.
And me! I don't want to use the 48 because the display is so horrible. The worst LCD I have ever come across anywhere. And the uncluttered clamshell keyboard is really really good.
RE: HP 28S - Joe Horn - 10-16-2014 02:09 PM
(10-16-2014 03:35 AM)brouhaha Wrote: I'm apparently in the minority, but I like the keyboard layout of the 48S/SX better than that of the 48G/GX. I especially didn't like the loss of "VISIT" from the keyboard.
Although it's not printed on the keyboard, the G/GX does have VISIT's functionality available on the keyboard, both for variables and stack levels.
To VISIT a variable, put its name on level 1 and press [left-shift] [+/-], which is marked "EDIT". On the G/GX, EDIT on a variable name does what VISIT does on the S/SX. This makes it as easy on the G/GX as on the S/SX.
To VISIT a stack level, put the number of the stack level PLUS ONE on level 1, press [up-arrow] to enter the interactive stack, and press [right-shift] [+/-], or [right-shift] [F2]. This is not as simple as the S/SX's VISIT key, but the functionality is there if you need it.
RE: HP 28S - brouhaha - 10-21-2014 12:29 AM
(10-16-2014 02:09 PM)Joe Horn Wrote: On the G/GX, EDIT on a variable name does what VISIT does on the S/SX. This makes it as easy on the G/GX as on the S/SX.
I dislike that because sometimes I actually want to edit a name in level 1, rather than the variable the name references. I don't like EDIT doing one thing for names, and another thing for anything else.
RE: HP 28S - Joe Horn - 10-21-2014 04:51 AM
(10-21-2014 12:29 AM)brouhaha Wrote:(10-16-2014 02:09 PM)Joe Horn Wrote: On the G/GX, EDIT on a variable name does what VISIT does on the S/SX. This makes it as easy on the G/GX as on the S/SX.
I dislike that because sometimes I actually want to edit a name in level 1, rather than the variable the name references.
But that's even easier: just press down-cursor. A single non-shifted keystroke. Can't beat that.
(10-21-2014 12:29 AM)brouhaha Wrote: I don't like EDIT doing one thing for names, and another thing for anything else.
Tastes differ. I like it, and I like even more how this "smart" functionality in the 48G evolved into the EDIT, EDITB, VISIT, and VISITB functions on the 49/50, in which they are programmable AND on the keyboard AND in various menus. Lots of power for those who use the machine enough to remember what's where.
RE: HP 28S - RMollov - 10-21-2014 05:22 AM
(10-21-2014 04:51 AM)Joe Horn Wrote: But that's even easier: just press down-cursor. A single non-shifted keystroke. Can't beat that.I find that even more intuitive, down-cursor edits name, EDIT - the content of it.
RE: HP 28S - brouhaha - 10-21-2014 05:32 AM
(10-21-2014 05:22 AM)RMollov Wrote:(10-21-2014 04:51 AM)Joe Horn Wrote: But that's even easier: just press down-cursor. A single non-shifted keystroke. Can't beat that.I find that even more intuitive, down-cursor edits name, EDIT - the content of it.
Except that EDIT doesn't always edit the "contents" of it. It only does that if it's a name.
I liked VISIT because it was 100% consistent in its behavior. (Here's an opportunity for someone to quote Emerson at me, but if you're going to do it, do it right.) I don't see any advantage in the inconsistent behavor of 48G series EDIT over the consistent behavior of EDIT and VISIT of the 48S series.
There's just no pleasing some people. :-)
RE: HP 28S - Joe Horn - 10-21-2014 12:02 PM
(10-21-2014 05:32 AM)brouhaha Wrote: I liked VISIT because it was 100% consistent in its behavior. (Here's an opportunity for someone to quote Emerson at me, but if you're going to do it, do it right.)
Fear not. I especially enjoy the quotation (almost a rhyme), since it ends with a jibe at my vocation ("divines" means "clergy"):
"A foolish consistency is the hobgoblin of little minds,
Adored by little statesmen and philosophers and divines."
-- Ralph Waldo Emerson, in "Self Reliance"