Old HP Forum Archives
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Thread [asc] / Author | Replies | Views | Last Post | ||
HP-30b available at Office Depot.....soon
08-04-2010, 10:03 AM
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9 | 2,228 |
08-06-2010, 03:33 PM Last Post: Gerson W. Barbosa |
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HP-30B (WP-34S) Technical Documentation
09-08-2013, 02:34 PM
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3 | 1,619 |
09-09-2013, 03:07 PM Last Post: Harald |
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HP-30?
02-05-2003, 03:07 PM
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4 | 1,122 |
02-06-2003, 04:07 AM Last Post: Frank Glitz |
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HP-300s cannot do nCr for many allowable values
10-14-2010, 07:36 AM
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21 | 4,819 |
10-31-2010, 11:10 AM Last Post: Eddie W. Shore |
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HP-29C: another faulty calculator through eBay...
02-21-2006, 11:38 PM
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5 | 1,542 |
02-22-2006, 04:23 AM Last Post: Bram |
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hp-29c simulator (ok... , almost)
07-23-2006, 10:24 PM
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6 | 1,472 |
07-25-2006, 08:20 AM Last Post: Andrés C. Rodríguez (Argentina) |
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HP-29C signs of life... any clues as to the cause?
10-31-2008, 01:25 PM
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4 | 1,234 |
11-01-2008, 12:14 PM Last Post: Michael Meyer |
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HP-29C Schematic/pin out
07-17-2005, 12:42 PM
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2 | 954 |
07-18-2005, 07:39 AM Last Post: Carlos |
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HP-29C Quick Reference Guide
06-18-2007, 12:53 PM
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5 | 1,500 |
06-22-2007, 04:52 PM Last Post: Les Wright |
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HP-29C Prototype on Ebay
11-24-2008, 12:41 AM
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3 | 1,151 |
11-25-2008, 07:56 AM Last Post: Randy |
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HP-29C problem
06-20-2001, 05:17 PM
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6 | 1,417 |
06-22-2001, 03:52 PM Last Post: Viktor Toth |
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HP-29c Power (?) problems
02-09-2009, 11:34 AM
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11 | 2,769 |
02-10-2009, 04:33 PM Last Post: Xavier A. (Brazil) |
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HP-29c malfunction symptoms
02-12-2009, 04:09 PM
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5 | 1,580 |
02-17-2009, 06:41 AM Last Post: Xavier A. (Brazil) |
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HP-29c keyboard dead 2nd row problem
07-11-2012, 09:14 PM
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6 | 2,204 |
07-17-2012, 07:09 AM Last Post: Xavier A. (Brazil) |
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HP-29C Counterparts
05-12-2012, 04:11 PM
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2 | 1,229 |
05-12-2012, 06:44 PM Last Post: Matt Agajanian |
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HP-29C Behavior that is odd!
02-07-2010, 11:18 AM
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1 | 939 |
02-07-2010, 11:43 AM Last Post: Michael de Estrada |
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HP-29C
02-08-2009, 11:10 PM
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1 | 723 |
02-09-2009, 04:43 PM Last Post: Xavier A. (Brazil) |
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HP-29C
01-17-2003, 03:50 PM
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1 | 775 |
01-18-2003, 07:41 AM Last Post: Larry Corrado |
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HP-29C
12-01-2000, 10:57 PM
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0 | 600 |
12-01-2000, 10:57 PM Last Post: Garrett Fulton |
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HP-29C
04-03-2008, 04:51 PM
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7 | 1,874 |
04-06-2008, 05:16 AM Last Post: Tony Duell |
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HP-28S/Clamshell Keyboard Test
08-03-2011, 08:40 PM
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2 | 1,186 |
08-03-2011, 09:02 PM Last Post: aj04062 |
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HP-28S Syntax Errors
07-15-2012, 11:41 AM
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7 | 2,485 |
07-15-2012, 05:09 PM Last Post: Luiz C. Vieira (Brazil) |
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HP-28S surpasses US$280 mark
09-20-2002, 12:04 AM
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4 | 1,165 |
09-22-2002, 02:51 PM Last Post: Scuba Diver |
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hp-28s solutions manual #00028-90103
01-17-2007, 09:11 PM
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9 | 2,448 |
01-22-2007, 05:16 PM Last Post: Bill (Smithville, NJ) |
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HP-28S plays "Happy Birthday"
08-06-2012, 04:53 PM
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0 | 1,024 |
08-06-2012, 04:53 PM Last Post: Kevin F |
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HP-28S New in Box - went for $205
09-28-2002, 11:59 PM
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3 | 1,107 |
09-30-2002, 09:15 AM Last Post: David Tan (Singapore) |
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HP-28S Mathematical Applications manual errata
07-25-2012, 08:40 AM
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2 | 1,323 |
07-25-2012, 09:54 AM Last Post: Tom Sauntry |
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HP-28S Malfunction
06-13-2000, 02:16 PM
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8 | 2,098 |
06-14-2000, 11:15 AM Last Post: Andrés C. Rodríguez |
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HP-28S Keyboard
07-25-2011, 10:46 PM
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4 | 1,322 |
07-26-2011, 04:39 PM Last Post: aj04062 |
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Hp-28S insights book
02-21-2003, 12:52 AM
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2 | 896 |
02-22-2003, 04:36 AM Last Post: Christof |
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HP-28S error
08-18-2006, 11:48 AM
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2 | 827 |
08-18-2006, 05:05 PM Last Post: Karl Schneider |
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Hp-28S Does not Turn On
09-18-2011, 06:27 PM
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10 | 2,594 |
09-19-2011, 08:15 AM Last Post: Bart (UK) |
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HP-28S Clock Accuracy
03-21-2006, 02:00 AM
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7 | 1,973 |
03-21-2006, 02:42 AM Last Post: John Limpert |
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HP-28S Beeper
10-10-2002, 09:32 AM
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2 | 896 |
10-10-2002, 05:45 PM Last Post: MJ Meiners |
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HP-28S Battery Door
10-25-2003, 06:16 PM
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3 | 1,068 |
10-26-2003, 04:21 PM Last Post: Veli-Pekka Nousiainen |
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HP-28S Battery Cover
04-09-2012, 10:08 PM
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2 | 1,629 |
04-09-2012, 10:29 PM Last Post: aj04062 |
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HP-28S Autopsy Photographs
05-09-2003, 02:38 PM
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5 | 1,372 |
05-12-2003, 09:11 AM Last Post: Paul Brogger |
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HP-28S
10-06-2004, 06:16 PM
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1 | 682 |
10-06-2004, 06:51 PM Last Post: Raymond Del Tondo |
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HP-28COM
03-12-2004, 03:07 PM
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0 | 573 |
03-12-2004, 03:07 PM Last Post: Erik Ehrling (Sweden) |
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HP-28C ROM checksum addresses?
07-25-2010, 08:25 PM
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0 | 743 |
07-25-2010, 08:25 PM Last Post: Christoph Giesselink |
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HP-28C Lithium Batteries
04-03-2001, 06:15 PM
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0 | 603 |
04-03-2001, 06:15 PM Last Post: Colin |
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HP-28C
12-10-2002, 03:32 AM
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2 | 804 |
12-10-2002, 06:11 AM Last Post: Luc |
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HP-28--better design?
06-21-2012, 01:38 PM
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7 | 2,404 |
06-27-2012, 09:27 AM Last Post: David Tellet |
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HP-28 RS232 interface (wasn't someone after this?)
07-25-2000, 08:26 AM
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0 | 539 |
07-25-2000, 08:26 AM Last Post: Steve |
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HP-28 Annunciators
07-06-2007, 11:17 PM
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1 | 858 |
07-06-2007, 11:28 PM Last Post: James M. Prange (Michigan) |
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HP-27S Technical Applications
08-19-2006, 01:24 PM
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10 | 2,631 |
08-20-2006, 08:11 PM Last Post: Bill (Smithville, NJ) |
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HP-27S Successful LCD transplantation
01-27-2010, 11:58 AM
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0 | 743 |
01-27-2010, 11:58 AM Last Post: Lyuka |
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HP-27S speed compared to HP-42S
06-05-2013, 09:38 AM
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3 | 1,733 |
06-05-2013, 05:55 PM Last Post: Christoph Giesselink |
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HP-27s Rom Dump problem
06-19-2005, 08:01 PM
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0 | 678 |
06-19-2005, 08:01 PM Last Post: Carey |
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HP-27S needs helps !
01-23-2003, 01:22 PM
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3 | 1,114 |
01-24-2003, 07:54 PM Last Post: Pyerre |
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HP-27s Emulator Question
06-23-2005, 07:58 AM
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0 | 612 |
06-23-2005, 07:58 AM Last Post: carey |
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HP-27S Disassembly
01-03-2007, 07:21 AM
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2 | 1,148 |
01-04-2007, 11:56 AM Last Post: Bob Belanger |
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HP-27S "Technical Manager" vs. "Scientific"
03-25-2011, 03:34 AM
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9 | 2,461 |
03-26-2011, 02:38 AM Last Post: Walter B |
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HP-27: Why would this trace be cut?
08-09-2002, 03:31 PM
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6 | 1,671 |
08-13-2002, 04:57 PM Last Post: David Smith |
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HP-27 Woodstock Thermal Problem
02-03-2009, 09:33 PM
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2 | 1,108 |
02-04-2009, 10:11 PM Last Post: Robert Hollyer |
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HP-27 Power-on Problems
06-30-2000, 08:31 PM
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1 | 669 |
06-30-2000, 10:08 PM Last Post: katie |
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HP-26 Prototype Found
04-01-2003, 05:58 PM
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19 | 3,744 |
04-03-2003, 02:29 AM Last Post: Raymond Del Tondo |
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HP-26 Minimal Calculator
04-05-2003, 08:53 PM
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10 | 2,260 |
04-08-2003, 11:30 PM Last Post: Michael F. Coyle |
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HP-25C strange behaviour
04-22-2009, 09:27 AM
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14 | 3,334 |
04-26-2009, 06:21 PM Last Post: Alberto Fenini |
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HP-25C Repairing
10-28-2011, 10:09 PM
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11 | 3,119 |
10-31-2011, 01:11 PM Last Post: Randy |
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HP-25C repair
06-04-2007, 08:28 PM
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3 | 1,088 |
06-05-2007, 02:14 AM Last Post: Eric Smith |
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HP-25C needs chips to come back to life
06-10-2010, 03:52 PM
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2 | 1,084 |
06-10-2010, 09:20 PM Last Post: Vieira, Luiz C. (Brazil) |
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HP-25C Forgets steps in memory
01-24-2007, 06:08 AM
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0 | 607 |
01-24-2007, 06:08 AM Last Post: John Garza |
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HP-25C Continuous Memory Calculator
06-19-2005, 12:33 PM
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1 | 752 |
06-19-2005, 02:45 PM Last Post: Andrés C. Rodríguez (Argentina) |
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HP-25C Battery Pack
06-08-2007, 09:21 PM
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1 | 782 |
06-09-2007, 05:52 PM Last Post: Walter B |
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HP-25C Battery Pac
04-14-2003, 06:26 PM
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1 | 715 |
04-14-2003, 06:38 PM Last Post: David Smith |
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HP-25C ACT Chip?
11-08-2010, 05:33 PM
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0 | 671 |
11-08-2010, 05:33 PM Last Post: Mark Henderson |
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HP-25: More common problems?
06-25-2002, 03:24 AM
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4 | 1,174 |
06-25-2002, 02:30 PM Last Post: Juergen Rodenkirchen |
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HP-25: battery problems
06-29-2002, 01:18 PM
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3 | 1,101 |
06-29-2002, 04:36 PM Last Post: Juergen Rodenkirchen |
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HP-25/25C Potential
07-08-2013, 10:07 PM
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14 | 4,108 |
07-17-2013, 02:57 AM Last Post: Matt Agajanian |
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HP-25 weird behavior
02-10-2003, 05:38 PM
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3 | 1,032 |
02-11-2003, 05:58 PM Last Post: David Smith |
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HP-25 update and thank you
05-06-2010, 08:01 PM
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2 | 1,280 |
05-07-2010, 12:04 AM Last Post: Martin Pinckney |
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HP-25 turns itself off
07-14-2009, 05:04 PM
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1 | 778 |
07-14-2009, 06:28 PM Last Post: Geoff Quickfall |
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HP-25 Repair?
04-19-2008, 09:17 PM
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5 | 1,440 |
04-21-2008, 06:19 AM Last Post: Alejandro Paz (Germany) |
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HP-25 Repair Tiips Needed.
04-18-1999, 12:39 AM
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4 | 1,330 |
04-18-1999, 04:59 PM Last Post: DaveC |
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HP-25 repair
04-29-2003, 11:02 AM
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5 | 1,412 |
04-30-2003, 03:31 PM Last Post: David Smith |
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HP-25 Repair
05-23-2003, 02:01 PM
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0 | 654 |
05-23-2003, 02:01 PM Last Post: Bernhard Emese |
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HP-25 program line
03-20-2003, 10:14 PM
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7 | 1,710 |
03-21-2003, 05:26 PM Last Post: David Smith |
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HP-25 Prog Cose Puzzle
10-12-2003, 10:46 AM
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2 | 856 |
10-13-2003, 08:25 AM Last Post: Gordon Dyer |
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HP-25 problem
02-22-2003, 05:06 PM
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7 | 1,782 |
02-23-2003, 08:49 PM Last Post: David Smith |
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hp-25 pressing 1 displays 3?
02-25-2003, 11:37 AM
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0 | 537 |
02-25-2003, 11:37 AM Last Post: Rodney |
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HP-25 Power-On Issue
06-04-2002, 12:00 PM
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8 | 1,870 |
06-08-2002, 05:28 PM Last Post: David Smith |
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Hp-25 needs service
01-14-2007, 06:03 AM
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3 | 1,175 |
01-16-2007, 09:06 AM Last Post: Thomas Radtke |
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HP-25 manual revisions
07-20-2003, 03:22 PM
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1 | 962 |
07-20-2003, 04:24 PM Last Post: Bill |
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HP-25 left on for a long, long, while
04-08-2013, 11:51 PM
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12 | 3,526 |
04-10-2013, 11:33 PM Last Post: Steve Leibson |
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HP-25 keyboard problem (4 enters 6)
12-03-2007, 11:23 AM
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3 | 1,257 |
12-03-2007, 03:47 PM Last Post: glauber |
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HP-25 keyboard
02-15-2013, 04:44 PM
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5 | 1,859 |
02-16-2013, 09:59 PM Last Post: Brad Barton |
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HP-25 internal Power Circuit Charger
09-01-2003, 01:17 PM
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3 | 1,055 |
09-02-2003, 02:57 PM Last Post: David Smith |
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HP-25 first production dates & quantities
03-13-2008, 01:02 PM
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0 | 619 |
03-13-2008, 01:02 PM Last Post: Rob W. |
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HP-25 fails to store programming steps
01-26-2009, 04:40 PM
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10 | 2,424 |
01-27-2009, 07:48 PM Last Post: Randy |
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HP-25 erratic behaviour
11-30-2009, 06:38 AM
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23 | 4,948 |
12-03-2009, 10:06 AM Last Post: Bart (UK) |
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HP-25 dots and dots...
12-24-2003, 03:03 PM
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2 | 943 |
12-29-2003, 01:25 PM Last Post: David Smith |
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HP-25 displays "Error" when trying to input numbers
01-22-2011, 05:44 PM
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2 | 1,067 |
01-23-2011, 06:30 AM Last Post: Harald |
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HP-25 display weirdness
06-23-2002, 07:37 AM
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0 | 636 |
06-23-2002, 07:37 AM Last Post: Jonas Otter |
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HP-25 Capacitor Question
09-22-2001, 11:22 PM
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2 | 957 |
09-23-2001, 01:54 PM Last Post: Tony Duell (UK) |
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HP-25 Calculators
02-04-2007, 10:49 AM
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12 | 2,635 |
02-05-2007, 05:59 PM Last Post: Jim |
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HP-25 Bugs
04-30-2002, 11:14 AM
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12 | 2,896 |
04-30-2002, 09:42 PM Last Post: Michael Holley |
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HP-25 Battery Pack
11-01-1999, 10:59 PM
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1 | 792 |
11-02-1999, 02:05 AM Last Post: Viktor Toth |
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HP-25 Battery Pack
10-02-2009, 07:04 AM
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17 | 4,338 |
10-20-2009, 07:34 AM Last Post: Xavier A. (Brazil) |
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HP-25 battery pack
11-24-2009, 05:27 PM
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11 | 2,714 |
11-29-2009, 05:04 AM Last Post: Andreas Grund |
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