HP-41 Hardware
89 topics • Page 1 of 4 • 1, 2, 3, 4
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- Special Hardware Failure reg. Oscillator
by Stree » Sat May 01, 2021 1:43 pm
- 0 Replies
- 723 Views
- Last post by Stree
Sat May 01, 2021 1:43 pm
- Special Hardware Failure reg. Oscillator
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- HP41 (only) protection box
by floppy_stuttgart » Thu Apr 29, 2021 2:17 pm
- 6 Replies
- 385 Views
- Last post by floppy_stuttgart
Fri Apr 30, 2021 7:32 pm
- HP41 (only) protection box
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- RS232
by Duncan » Wed Apr 14, 2021 7:39 pm - 3 Replies
- 406 Views
- Last post by floppy_stuttgart
Mon Apr 26, 2021 1:39 pm
- RS232
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- New "Quad Module" is actually a "CCD A" — I've got questions
1, 2 by Jordan Orlando » Wed Apr 21, 2021 8:40 am
- 11 Replies
- 915 Views
- Last post by rprosperi
Fri Apr 23, 2021 3:21 am
- New "Quad Module" is actually a "CCD A" — I've got questions
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- "Extra' plastic piece fell out of 41C — Where does it go?
by Jordan Orlando » Thu Apr 15, 2021 2:43 am - 5 Replies
- 536 Views
- Last post by Jordan Orlando
Thu Apr 22, 2021 7:19 am
- "Extra' plastic piece fell out of 41C — Where does it go?
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- Quad Memory module changes "CAT" function
1, 2 by Jordan Orlando » Wed Apr 14, 2021 1:38 am
- 10 Replies
- 983 Views
- Last post by Jordan Orlando
Sat Apr 17, 2021 2:47 am
- Quad Memory module changes "CAT" function
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- 41C and modules from eBay — "NONEXISTENT"
by Jordan Orlando » Sun Apr 04, 2021 11:24 am
- 7 Replies
- 775 Views
- Last post by Jordan Orlando
Mon Apr 05, 2021 1:28 am
- 41C and modules from eBay — "NONEXISTENT"
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- HP41 and hp16 emulation
by ystone21 » Fri Mar 19, 2021 9:36 am - 5 Replies
- 1761 Views
- Last post by rprosperi
Sun Mar 21, 2021 7:41 pm
- HP41 and hp16 emulation
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- Book on HP41 repair
by divasson » Sun Oct 04, 2020 8:02 am - 4 Replies
- 5787 Views
- Last post by pcscote
Mon Oct 05, 2020 11:41 am
- Book on HP41 repair
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- Battery contact unit for HP 41CX
by CHUI HT » Sun Aug 23, 2020 3:33 am - 3 Replies
- 2763 Views
- Last post by kkritsilas
Fri Oct 02, 2020 2:06 am
- Battery contact unit for HP 41CX
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- HP-41CL Conversion Question
by TwoWeims » Tue Sep 10, 2019 11:29 pm - 2 Replies
- 3464 Views
- Last post by divasson
Sun Sep 20, 2020 10:09 pm
- HP-41CL Conversion Question
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- Can't See Plugin Modules
by Interalia » Mon Apr 20, 2020 1:14 pm - 1 Replies
- 3051 Views
- Last post by Drulli
Tue Jun 02, 2020 2:54 pm
- Can't See Plugin Modules
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- CX Revival
by Duncan » Sun Jan 26, 2020 8:52 pm - 5 Replies
- 3941 Views
- Last post by Drulli
Sun Mar 29, 2020 12:09 pm
- CX Revival
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- Keyboard Overlays
by TwoWeims » Sat Aug 31, 2019 12:35 pm - 6 Replies
- 5376 Views
- Last post by GerardSen
Fri Oct 04, 2019 1:51 pm
- Keyboard Overlays
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- HP 41CV playing up
by nhkader » Sun Jun 23, 2019 11:39 pm - 4 Replies
- 4107 Views
- Last post by nhkader
Wed Jul 10, 2019 12:06 pm
- HP 41CV playing up
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- High Battery Drain
by PeterHendy » Tue Jul 09, 2019 11:20 pm - 1 Replies
- 3027 Views
- Last post by Garth
Wed Jul 10, 2019 5:50 am
- High Battery Drain
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- 3D model of part to fix some broken HP41s PCB interconnects
by danielalbertsill » Fri Aug 03, 2018 11:57 pm
- 0 Replies
- 4122 Views
- Last post by danielalbertsill
Fri Aug 03, 2018 11:57 pm
- 3D model of part to fix some broken HP41s PCB interconnects
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- HP-41C malfunction during startup
by prwktokali » Thu Jun 28, 2018 9:22 pm - 0 Replies
- 3556 Views
- Last post by prwktokali
Thu Jun 28, 2018 9:22 pm
- HP-41C malfunction during startup
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- HP 41 CV Repair
by marcelosz » Sat Sep 17, 2016 3:29 am - 2 Replies
- 6442 Views
- Last post by wgh52
Wed Nov 29, 2017 11:30 pm
- HP 41 CV Repair
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- USB powered HP41
by Neve1 » Thu Sep 07, 2017 11:20 pm - 4 Replies
- 5934 Views
- Last post by Neve1
Fri Sep 08, 2017 8:02 am
- USB powered HP41
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- Why no new time module?
by cappy2112 » Wed Dec 07, 2016 5:38 am - 3 Replies
- 5242 Views
- Last post by Neve1
Thu Sep 07, 2017 11:12 pm
- Why no new time module?
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- 41CX board does not power on
by syrou » Fri Dec 30, 2016 11:49 am
- 1 Replies
- 5125 Views
- Last post by Drulli
Sat Apr 15, 2017 4:05 pm
- 41CX board does not power on
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- Repair needed HP41C
by merkaren » Sun Dec 11, 2016 9:19 pm - 4 Replies
- 5878 Views
- Last post by merkaren
Thu Dec 15, 2016 12:34 am
- Repair needed HP41C
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