HP Forum Archive 08

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About HP-28S, a difference in black model and yellow model. Message #1 Posted by Hiroshi Ito (JAPAN) on 7 Aug 2002, 11:27 a.m. There is a kind that the kind that a shift key is yellow, and a shift key are black in HP-28S. Is there a difference between even the part except for the color of the shift key and both? How many kinds of HP-28S's are there?

Re: About HP-28S, a difference in black model and yellow model. Message #2 Posted by Vieira, Luiz C. (Brazil) on 7 Aug 2002, 12:56 p.m., in response to message #1 by Hiroshi Ito (JAPAN) Hi; I was not known about any HP28S with a blck shift key. That's new! Collectors piece? Are the shifted labels (printed in the keyboard) in black too? About the "regular" color: is it yellow or red (more to "wine", I'd say)? If I am not wrong, the 18C/19B/19BII are the ones with a yellow shift key. Is it correct? Cheers.

Re: About HP-28S, a difference in black model and yellow model. Message #3 Posted by Juergen Rodenkirchen (GER) on 7 Aug 2002, 3:13 p.m., in response to message #2 by Vieira, Luiz C. (Brazil) I always thought that "red" is the only existing color scheme for the 28S shift-key; At least, I've never seen a yellow-shift key machine, not to mention a black-keyed one. Is there anything more to tell that discriminates the ordinary -- well, if an HP-calc can be "ordinary" at all ;-) -- "red-key-" from the "yellow-key machine"?

Re: About HP-28S, a difference in black model and yellow model. Message #4 Posted by wlodekmj on 7 Aug 2002, 9:20 p.m., in response to message #1 by Hiroshi Ito (JAPAN) The HP-28S (and 28C) shift key is a rather dark purple. I'd guess that the person who asked the question saw a picture in which this key looks so dark as to seem black - or saw an HP-28S under poor lighting and thought the key was black. The financial models of the same size and shape all have a yellow shift key. Most likely the person who asked did not realize that the model with a yellow key was not an HP-28S. Or was this an HP-28S with an incorrect key in it - such errors do sometimes turn up on models where individual keys are used, and not a single molded unit comprising all the keys. Wlodek Mier-Jedrzejowicz

About HP-28S - Some ALIEN models Message #5 Posted by Vieira, Luiz C. (Brazil) on 7 Aug 2002, 10:16 p.m., in response to message #4 by wlodekmj Hi; it was 1985, I was about to become an Engineer, and I saw what I called an interesting trick: an HP11C with the HP15C's logo. If, at that time, I wondered how valuable collectro piece it was, I'd buy a new 11C and trade it. Now, I have no idea it it still exists or not. If I understand it well, the shift key of any clamshell fits in any other. Based on my own experience, this is interesting to see. IF HEAT STAKES ARE UNTOUCHED, say, no one openned the machine and changed keys with a purpose, this is something to be collected. Cheers.

Re: About HP-28S, a difference in black model and yellow model. Message #6 Posted by Hiroshi Ito (JAPAN) on 8 Aug 2002, 3:35 a.m., in response to message #1 by Hiroshi Ito (JAPAN) I made a mistake in the mention. The color of the shift key wasn't yellow, and it was dark red. I saw HP-28S of the red shift key and a black shift key HP-28S. HP-28S of the red shift key is sometimes seen even now. But, my friend had HP-28S of the black shift key. The key touch of the black shift key seemed to be unchanged with the red shift key, too. I saw the secondhand model of black shift key sold in Japanese Akihabara once in another day. It may be the model which is characteristic of Japan.

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