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How an HP-27 computes N.D.
by mike-stgt » Sun Sep 13, 2020 3:44 pm
in Other HP Calculators
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by mike-stgt
Sun Sep 13, 2020 3:44 pm
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PIL Box
by Duncan » Wed May 13, 2020 6:19 pm
in HP-IL
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- 63863
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by Duncan
Wed May 13, 2020 6:19 pm
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Correlacion Ortogonal
by mike-stgt » Sun Apr 26, 2020 5:56 pm
in HP-41 Software
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- 11599
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by mike-stgt
Sun Apr 26, 2020 5:56 pm
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Java Based Emulator
by gguemez » Mon Apr 13, 2020 11:51 pm
in HP-41 Documentation
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- 56950
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by gguemez
Mon Apr 13, 2020 11:51 pm
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WTB QRG Advanced Hepax
by ppl4world » Tue Apr 16, 2019 7:39 pm
in Buy & Sell
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- 12289
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by ppl4world
Tue Apr 16, 2019 7:39 pm
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HP41 Zengrange Morzen and Gunzen for sale
by Bumblebee » Sun Oct 07, 2018 11:24 am
in Buy & Sell
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- 11384
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by Bumblebee
Sun Oct 07, 2018 11:24 am
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3D model of part to fix some broken HP41s PCB interconnects
by danielalbertsill » Fri Aug 03, 2018 11:57 pm
in HP-41 Hardware
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- 14686
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by danielalbertsill
Fri Aug 03, 2018 11:57 pm
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HP-41C malfunction during startup
by prwktokali » Thu Jun 28, 2018 9:22 pm
in HP-41 Hardware
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- 13964
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by prwktokali
Thu Jun 28, 2018 9:22 pm
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XEQ and GTO indirect with an alpha label in the register
by Garth » Mon May 21, 2018 5:09 am
in Programming
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- 66130
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by Garth
Mon May 21, 2018 5:09 am
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WP34S with HP82240A and HP82241A
by lezouave » Sun Jun 11, 2017 9:56 am
in Buy & Sell
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- 11512
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by lezouave
Sun Jun 11, 2017 9:56 am
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SOLD: HP-41C and 20+ items for $350 (NEW PRICE)
by LavenderRoses » Sun Apr 23, 2017 11:54 pm
in Buy & Sell
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- 11983
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by LavenderRoses
Sun Apr 23, 2017 11:54 pm
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Site moved to new server
by jotne » Thu Jan 26, 2017 1:01 pm
in General Discussion
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- 64452
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by jotne
Thu Jan 26, 2017 1:01 pm
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Looking for replacement springs
by cappy2112 » Tue Dec 13, 2016 5:48 am
in HP-41 Hardware
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- 14005
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by cappy2112
Tue Dec 13, 2016 5:48 am
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WANTED : HP 41 c or cv or cx....
by enristoda » Sun Dec 04, 2016 10:06 am
in Buy & Sell
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- 11813
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by enristoda
Sun Dec 04, 2016 10:06 am
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XROMTST - documentation
by DirkCaver » Mon Oct 10, 2016 2:07 pm
in HP-41 Software
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- 13584
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by DirkCaver
Mon Oct 10, 2016 2:07 pm
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[Sold] HP-41 set (CV,CX,Wand,Reader,Cassette,IL,CCD,ZENROM)
by theMaesu » Sun Sep 18, 2016 11:55 am
in Buy & Sell
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- 12409
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by theMaesu
Sun Sep 18, 2016 11:55 am
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SGS Redwood Oil Calculator module
by jkeller » Mon Aug 29, 2016 6:42 pm
in Modules
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- 67630
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by jkeller
Mon Aug 29, 2016 6:42 pm
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EPROM with a large program
by mhdiemert » Sat Jul 09, 2016 7:28 pm
in Modules
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- 64525
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by mhdiemert
Sat Jul 09, 2016 7:28 pm
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Floppy Days HP-41 audio blog w/ Richard Nelson & Gene Wright
by Garth » Fri Jun 17, 2016 2:24 am
in General Discussion
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- 74535
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by Garth
Fri Jun 17, 2016 2:24 am
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International Calculator & Computer Repair service
by Captain Midnight » Sun Apr 10, 2016 3:10 am
in HP-41 Hardware
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- 15047
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by Captain Midnight
Sun Apr 10, 2016 3:10 am
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HP-41CV For Sale
by Porcelli47 » Mon Feb 29, 2016 1:15 am
in Buy & Sell
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- 13144
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by Porcelli47
Mon Feb 29, 2016 1:15 am
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Antennas Solution Book module fixes
by gjmcclure » Tue Feb 23, 2016 9:56 pm
in Modules
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- 64585
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by gjmcclure
Tue Feb 23, 2016 9:56 pm
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Woodstock - Battery Package / Battery Holder
by Dr. Mabuse » Mon Feb 01, 2016 6:27 pm
in Other HP Calculators
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- 77225
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by Dr. Mabuse
Mon Feb 01, 2016 6:27 pm
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Resolution Problem on Win 10 with RVTvb41c solved
by kiwijoker » Thu Jan 07, 2016 2:15 pm
in HP-41 Software
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- 15456
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by kiwijoker
Thu Jan 07, 2016 2:15 pm
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4-Functions-Plotter program for 82143A printer
by cipputi » Sun Sep 27, 2015 3:49 pm
in Printers
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- 94753
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by cipputi
Sun Sep 27, 2015 3:49 pm
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