The Museum of HP Calculators

HP Forum Archive 15

[ Return to Index | Top of Index ]

Pioneer model variations
Message #1 Posted by Randy on 15 Mar 2006, 4:35 p.m.

I'm almost finished with my complete Pioneer collection (all models, colors and variations) and all that remains to find is one variation of the 22S - the later stepped bezel model. I have several flat bezels with the window in front of the LCD but for the life of me, I've yet to see a step bezel. Dave has one in the Museum - so I know they exist. I'd like to take an informal poll of the community at large:

How many of you out there have a 22S with the later step bezel?

How about the same in the 27S?

Also - I've never seen a 21S in the early flat bezel model - anybody ever see one?

I'd really like to establish the rarity of these these variations in the less popular models. "Less popular" meaning at the time they were sold - as most 27S owners I've encountered are like 42S owners - unwilling to switch at any price.

      
Re: Pioneer model variations
Message #2 Posted by Paul Brogger on 15 Mar 2006, 5:19 p.m.,
in response to message #1 by Randy

I believe my remaining 22s is a newer, non-window model.

I'll check tonight.

If it's what you want, maybe we can work out a trade. (Goodness knows, you've offered more than your share of free help over the years!)

            
Ooops! I guess not . . .
Message #3 Posted by Paul Brogger on 16 Mar 2006, 12:07 p.m.,
in response to message #2 by Paul Brogger

Mine is of the older form. Good luck finding one!

      
Re: Pioneer model variations
Message #4 Posted by Museum on 15 Mar 2006, 5:57 p.m.,
in response to message #1 by Randy

Great job. Maybe you can give us a summery, which model exists in what variation (display, color, serial, ..)

            
Re: Pioneer model variations
Message #5 Posted by Randy on 15 Mar 2006, 10:53 p.m.,
in response to message #4 by Museum

Thank you, Paul. I'll just remind and thank you that it all started (at least for me) with your contribution of the "Pioneer Internals" article :)

Here's the list of what I've amassed in almost four years, I can plug in the serial numbers later if it is of any use. I'll be interested to know what I'm missing! Chances are I'll never find them but it will be interesting to compare notes. 

Model  Origin      Color   Bezel
10B    Singapore   Brown   Step
10B    Indonesia   Brown   Step
10B    Indonesia   Black   Step
14B    USA         Brown   Flat
14B    USA         Brown   Flat 50th Anniversary
17B    USA         Brown   Flat
17B    Singapore   Brown   Flat
17Bii  Singapore   Brown   Step
17Bii  Indonesia   Brown   Step
17Bii  Indonesia   Black   Step
20S    USA         Brown   Step
20S    Singapore   Brown   Step
20S    Indonesia   Brown   Step
20S    Indonesia   Black   Step
21S    USA         Brown   Step
21S    Singapore   Brown   Step
22S    USA         Brown   Flat
22S    Singapore   Brown   Flat
27S    USA         Brown   Flat
27S    Singapore   Brown   Step
32S    USA         Brown   Flat
32S    USA         Brown   Flat  50th Anniversary
32S    Singapore   Brown   Step
32Sii  USA         Brown   Step
32Sii  Singapore   Brown   Step
32Sii  Indonesia   Brown   Step
32Sii  Indonesia   Black   Step
42S    USA         Brown   Flat
42S    Brazil      Brown   Step
42S    Singapore   Brown   Step
42S    Indonesia   Brown   Step

Edited: 15 Mar 2006, 10:53 p.m.

                  
Re: Pioneer model variations
Message #6 Posted by Karl Schneider on 16 Mar 2006, 2:16 a.m.,
in response to message #5 by Randy

Hello, Randy --

About a month ago, I "completed" my collection of the Pioneer series (one each of the 11 models), amassed over four years mostly through eBay or eBay-inspired prices. I had already "completed" my collection of the HP-41 series and the Voyager series in a similar manner.

Here are the Pioneers I have:

Model  Origin      Color   Bezel   Year
10B    Singapore   Brown   Step    1993
14B    USA         Brown   Flat    1989    50th Anniversary
17B    USA         Brown   Flat    1988
17Bii  Singapore   Brown   Step    1993
20S    Indonesia   Brown   Step    1997
21S    USA         Brown   Step    1989
22S    USA         Brown   Flat    1988
27S    Singapore   Brown   Flat    1990
32S    Singapore   Brown   Step    1990
32Sii  Indonesia   Black   Step    2001
42S    Singapore   Brown   Flat    1989

Quote:
Also - I've never seen a 21S in the early flat bezel model - anybody ever see one?

My 21S is the earliest recessed ("step") bezel model in the list. Maybe it was a pilot project for the redesign.

Note that I have two 1990 Singapore-made units. One is a "step" 32S; the other is a "flat" 27S -- which is not like either of yours.

Just curious: Is your early USA-made 32Sii one with the fraction-calculation bug? If so, can you give an example? I've found the (sans bug) fraction-conversion capability of the HP-32II to be quite impressive, and would like to know how it was implemented. Only a massive look-up table in ROM would seem feasible, in order to give quick answers.

Thanks,

-- KS

Edited: 16 Mar 2006, 2:46 a.m.

                  
Re: Pioneer model variations
Message #7 Posted by Forrest Switzer on 16 Mar 2006, 8:38 a.m.,
in response to message #5 by Randy

Randy,

I also have these 42S models

Brazil Brown Flat 3024B Singapore Brown Flat 2920S

Forrest

                  
Re: Pioneer model variations
Message #8 Posted by Museum on 17 Mar 2006, 12:36 a.m.,
in response to message #5 by Randy

Hi Randy

Wow, this is a cool list of Pioneers... Maybe more than I have. I will try to add production year and original box (my favorite, yes) to your list. Just give me some time to do this. Also, collect informations of the production year as well. I would like to finally get a full list with time view, which modell was produced in which version during a periode of time. (Do you understand my bad english?)

Matthias

                        
Re: Pioneer model variations
Message #9 Posted by Museum on 17 Mar 2006, 12:44 a.m.,
in response to message #8 by Museum

Just forgot: It would also be really interesting to add ROM versions to your list. I will try to do my best, but I will need your help. Please have a look at your calculators and let us know the ROM versions. I will collect them and try to create a list.

                  
Re: Pioneer model variations
Message #10 Posted by Bruce Horrocks on 17 Mar 2006, 6:08 p.m.,
in response to message #5 by Randy

Quote:
Here's the list of what I've amassed in almost four years, I can plug in the serial numbers later if it is of any use. I'll be interested to know what I'm missing! Chances are I'll never find them but it will be interesting to compare notes.

I have a few extras not in your list (difference is marked with a star): 

Model  Origin      Color   Bezel
10B    Indonesia   Brown   Flat*
14B    USA         Brown   Step* 50th Anniversary
20S    Indonesia   Brown   Flat*
22S    USA         Brown   Step*

I'm very surprised by the 50th Anniversary 14B being different. I wonder if they had both sorts of faceplate in existence and some were done with one batch and others with the other?

      
Re: Pioneer model variations
Message #11 Posted by Marcus von Cube, Germany on 16 Mar 2006, 2:41 a.m.,
in response to message #1 by Randy

Quote:
Also - I've never seen a 21S in the early flat bezel model - anybody ever see one?

Is this what you are looking for?

http://www.rskey.org/detail.asp?manufacturer=Hewlett-Packard&model=HP-21S

Marcus

[ Return to Index | Top of Index ]

Go back to the main exhibit hall