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The [ENTER] key had an arrow at the start (in the very first 35) and kept it for a while, but the latest models don't have it. When did it disappear? Voyager?

On my 33s the ENTER key got so small that the arrow probably just fell off the edge.

It was on the 41C but not on the 28C. I don't think there was anything in between but I am often mistaken...

I'm pretty sure the Voyagers were the first with arrow-less ENTER keys.

(03-20-2020 12:36 AM)twoweims Wrote: [ -> ]It was on the 41C but not on the 28C. I don't think there was anything in between but I am often mistaken...

Włodek's book suggests these came in-between:

Voyagers
75/94
71B
18C

so looks like Thomas is spot on

(03-20-2020 01:06 AM)Thomas Okken Wrote: [ -> ]I'm pretty sure the Voyagers were the first with arrow-less ENTER keys.

Actually the HP-10 in 1977 had no arrow on the Enter key, but that's because the HP-10 had no Enter key, however it did have a dedicated up-arrow key! Weirdest damn machine to come out of Corvallis ever.

So, yeah, Voyagers!

Doh!
I forgot all about the Voyagers and my 15C is sitting right here on my desk !

(03-20-2020 01:56 AM)rprosperi Wrote: [ -> ]

(03-20-2020 01:06 AM)Thomas Okken Wrote: [ -> ]I'm pretty sure the Voyagers were the first with arrow-less ENTER keys.

Actually the HP-10 in 1977 had no arrow on the Enter key, but that's because the HP-10 had no Enter key, however it did have a dedicated up-arrow key! Weirdest damn machine to come out of Corvallis ever.

So, yeah, Voyagers!

Well, you forgot the HP 80 then... Arrow, but no ENTER.

(03-20-2020 08:08 AM)Massimo Gnerucci Wrote: [ -> ]Well, you forgot the HP 80 then... Arrow, but no ENTER.

I initially was going to use this one (it's great of course as it shows it only took 1 machine to change their mind...) but decided the HP-10 is even more interesting, since most folks think the Pioneers (10B, 14B, 20S, etc.) were HP's first non-RPN machines. Read the manual for this one if you don't have one, it's a strange beast.

(03-20-2020 08:08 AM)Massimo Gnerucci Wrote: [ -> ]

(03-20-2020 01:56 AM)rprosperi Wrote: [ -> ]Actually the HP-10 in 1977 had no arrow on the Enter key, but that's because the HP-10 had no Enter key, however it did have a dedicated up-arrow key! Weirdest damn machine to come out of Corvallis ever.

So, yeah, Voyagers!

Well, you forgot the HP 80 then... Arrow, but no ENTER.

here is the one I was talking about in another post, two different kinds of arrow: in the 35 (except for the latest version), it seems drawed by hand[attachment=8190]

(03-20-2020 12:46 PM)rprosperi Wrote: [ -> ]

(03-20-2020 08:08 AM)Massimo Gnerucci Wrote: [ -> ]Well, you forgot the HP 80 then... Arrow, but no ENTER.

I initially was going to use this one (it's great of course as it shows it only took 1 machine to change their mind...) but decided the HP-10 is even more interesting, since most folks think the Pioneers (10B, 14B, 20S, etc.) were HP's first non-RPN machines.

Apart from some desktop machines and the HP-01.

(03-20-2020 12:46 PM)rprosperi Wrote: [ -> ]Read the manual for this one if you don't have one, it's a strange beast.

I think I've got three of them, don't remember if I have a printed manual... should resort to a PDF.

(03-20-2020 01:03 PM)aurelio Wrote: [ -> ]here is the one I was talking about in another post, two different kinds of arrow: in the 35 (except for the latest version), it seems drawed by hand

Interesting, I'll have to check my 35, I don't recall that. It's interesting that the style of the up-arrow is toyally different from the style of the down-arrow a row above on the bezel.

(03-20-2020 04:50 PM)rprosperi Wrote: [ -> ]

(03-20-2020 01:03 PM)aurelio Wrote: [ -> ]here is the one I was talking about in another post, two different kinds of arrow: in the 35 (except for the latest version), it seems drawed by hand

Interesting, I'll have to check my 35, I don't recall that. It's interesting that the style of the up-arrow is toyally different from the style of the down-arrow a row above on the bezel.

and strange that in this prototype there is a "newer style" arrow
and look a the others

you can see all the arrow type used for the 35