Everything about 41C 41CV and 41CX Hardware
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- contactor damage. How bad?
by eroeder » Sun Apr 03, 2022 10:10 pm
- 3 Replies
- 280 Views
- Last post by BillBee
Fri Apr 29, 2022 3:24 pm
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- 4 upper toggle keys stiff
by 3p141592654 » Tue Jan 25, 2022 7:58 pm
- 2 Replies
- 506 Views
- Last post by 3p141592654
Wed Jan 26, 2022 3:36 am
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- Load time for HP41 accu pack?
by floppy_stuttgart » Fri Jan 14, 2022 6:42 pm
- 5 Replies
- 364 Views
- Last post by floppy_stuttgart
Mon Jan 17, 2022 11:19 pm
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- RAMBOX: what is this and how to recognize if from a picture?
by floppy_stuttgart » Sun Oct 31, 2021 3:10 pm
- 3 Replies
- 968 Views
- Last post by floppy_stuttgart
Wed Nov 03, 2021 5:32 pm
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- Further use of HP41CV with defect ports 2&4 ? or..?
by floppy_stuttgart » Wed Sep 01, 2021 4:17 pm
- 5 Replies
- 1717 Views
- Last post by floppy_stuttgart
Thu Oct 14, 2021 10:15 am
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- HP41CV with unknown internal modification
by euleken » Thu Sep 16, 2021 8:33 pm
- 8 Replies
- 1706 Views
- Last post by floppy_stuttgart
Wed Oct 06, 2021 7:17 am
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- HP-41 top mtg. screws
by John B. » Tue Aug 24, 2021 10:03 pm
- 1 Replies
- 1179 Views
- Last post by Garth
Wed Aug 25, 2021 4:20 am
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- HP41 (only) protection box
by floppy_stuttgart » Thu Apr 29, 2021 2:17 pm
- 12 Replies
- 3883 Views
- Last post by floppy_stuttgart
Thu Jul 29, 2021 12:46 pm
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- Power Supply
by Poly-tour » Wed Jun 30, 2021 3:18 pm
- 4 Replies
- 1717 Views
- Last post by Poly-tour
Sat Jul 03, 2021 5:55 am
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- Special Hardware Failure reg. Oscillator
by Stree » Sat May 01, 2021 1:43 pm
- 0 Replies
- 2433 Views
- Last post by Stree
Sat May 01, 2021 1:43 pm
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- RS232
by Duncan » Wed Apr 14, 2021 7:39 pm
- 3 Replies
- 1909 Views
- Last post by floppy_stuttgart
Mon Apr 26, 2021 1:39 pm
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- New "Quad Module" is actually a "CCD A" — I've got questions
by Jordan Orlando » Wed Apr 21, 2021 8:40 am
- 11 Replies
- 4335 Views
- Last post by rprosperi
Fri Apr 23, 2021 3:21 am
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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
- 2286 Views
- Last post by Jordan Orlando
Thu Apr 22, 2021 7:19 am
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- Quad Memory module changes "CAT" function
by Jordan Orlando » Wed Apr 14, 2021 1:38 am
- 10 Replies
- 4139 Views
- Last post by Jordan Orlando
Sat Apr 17, 2021 2:47 am
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- 41C and modules from eBay — "NONEXISTENT"
by Jordan Orlando » Sun Apr 04, 2021 11:24 am
- 7 Replies
- 2793 Views
- Last post by Jordan Orlando
Mon Apr 05, 2021 1:28 am
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- HP41 and hp16 emulation
by ystone21 » Fri Mar 19, 2021 9:36 am
- 5 Replies
- 3482 Views
- Last post by rprosperi
Sun Mar 21, 2021 7:41 pm
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- Book on HP41 repair
by divasson » Sun Oct 04, 2020 8:02 am
- 4 Replies
- 7534 Views
- Last post by pcscote
Mon Oct 05, 2020 11:41 am
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- DM41CX
by Duncan » Tue Sep 29, 2020 9:38 am
- 7 Replies
- 5337 Views
- Last post by Garth
Fri Oct 02, 2020 11:51 pm
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- Battery contact unit for HP 41CX
by CHUI HT » Sun Aug 23, 2020 3:33 am
- 3 Replies
- 4614 Views
- Last post by kkritsilas
Fri Oct 02, 2020 2:06 am
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- HP-41CL Conversion Question
by TwoWeims » Tue Sep 10, 2019 11:29 pm
- 2 Replies
- 4907 Views
- Last post by divasson
Sun Sep 20, 2020 10:09 pm
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- Can't See Plugin Modules
by Interalia » Mon Apr 20, 2020 1:14 pm
- 1 Replies
- 4442 Views
- Last post by Drulli
Tue Jun 02, 2020 2:54 pm
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- CX Revival
by Duncan » Sun Jan 26, 2020 8:52 pm
- 5 Replies
- 5753 Views
- Last post by Drulli
Sun Mar 29, 2020 12:09 pm
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- Keyboard Overlays
by TwoWeims » Sat Aug 31, 2019 12:35 pm
- 6 Replies
- 7384 Views
- Last post by GerardSen
Fri Oct 04, 2019 1:51 pm
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- HP-41CV - doesn't power on
by cappy2112 » Mon Jan 23, 2017 12:51 am
- 28 Replies
- 28812 Views
- Last post by wgh52
Fri Aug 02, 2019 7:03 am
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- HP 41CV playing up
by nhkader » Sun Jun 23, 2019 11:39 pm
- 4 Replies
- 5738 Views
- Last post by nhkader
Wed Jul 10, 2019 12:06 pm
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