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This forum is for the buying and selling of older (out-of-production) HP calculators, computers and parts and supplies as well as mechanical calculators and slide rules. Please do not publish ads for the same items or services more frequently than once per week. Inappropriate or frequently reposted ads may be deleted at any time with or without notification. Please review the Terms of Use for more complete information.

The Museum of HP Calculators and the curator take no responsibility for ads placed here. Please take appropriate precautions when dealing with strangers over the internet. Please Beware of Scams!! Please use the HP forum section for general discussions.

The following abbreviations are used:

(WTB)

Want To Buy           

(AUCTION)

For sale by online Auction (like eBay)

(FS)

For Sale at fixed price

(TRADE)

For Trade (only)

(FSBO)

For Sale at Best Offer

(FSOT)

For Sale Or Trade

(MFSBO)

May be For Sale at Best Offer

(SW)

Service Wanted

(FSOBO)

For Sale at fixed price Or Best Offer

(SO)

Service Offered

(FREE)

Free item(s)


HP advertisement Index

The most recent ads are shown with previews. Click on a title to see a complete ad.

HP advertisements Posted or Modified Within the Last Archive

34 of 34 HP advertisements Displayed
(Reversed Threaded Listing)

HP 71B (WTB)
Hello | I want to buy an entirely NEW HP 71B (still in the box with all the books). Thanks for contacting me on dominique.deprez@skynet.be
[Contact Dominique Deprez | View complete ad] Posted 8 Feb 2010

HP 41C (FSBO)
HP41C SN2308341441 No batteries. Cosmetic condition very good to excellent - no observable physical defects or missing pieces/parts, including window which looks unscratched. Battery contacts look clean & shiny. Working condition unknown. One "Quad Memory" module is inserted. Comes with original brown leatherette zip case in good condition.
[Contact N Springer | View complete ad] Posted 6 Feb 2010

HP 41cx Original Box Wanted (WTB)
I assume there is a newer and an older style box for these calculators. I have a side-opening box for my 41cx and am looking for the style that is two-piece, that opens from the top. Willing to buy yours or trade for my style, which is in excellent condition. Thanks, Dave
[Contact DavidShenk | View complete ad] Posted 6 Feb 2010

Want to get HP-85 cassette (FSOT)
I would like to acquire (buy or trade) a cassette for the HP-85, in good working condition. | I am ready to buy (let me know your price incl shipping to NJ, USA) or to trade for some HP stuff that I have collected recently (let me know what you are interested in). | Thanks | Giovanni
[Contact Giovanni Jimenez | View complete ad] Posted 5 Feb 2010

Looking for working HP-25/HP-25C (WTB)
I am interested in a "working" HP-25/HP-25C with or without accessories. Please make your offer to oe3pha@hotmail.com peter |
[Contact Peter HOFMANN | View complete ad] Posted 5 Feb 2010

HP-15C (FS)
I am going to sell one of my HP-15c calculators. The HP-15c is in fine cosmetical condition, works properly and has a clean battery compartment. I will add a CD-ROM with the operators manual and the advanced functions maual. I want 200.ooUSD plus 20.ooUSD for registered and insured airmail from Germany, we may use PayPal for payment. Feel free to ask for details and pictures.
[Contact Andreé | View complete ad] Posted 5 Feb 2010

Various 71b, series 80 etc books (FS)
All are in English language unless otherwise specified. prices as marked, plus postage from Australia. | Let mw know if you have any interest. | 1) HP82420 Memory Module instructions for HP71b - $10 | 2) HP9114 Disk Drive Operators manual - $20 | 3) Hewlett Packard Thinkjet Owners Manual - $10 | 4) HP82401 HP71b HP-IL Interface Owners Manual - $20 | 5) 2 x HP82402A HP71b Dual HP-IL adapter owners manual - $20 each | 6) HP series 80 I/O ROM Owners Manual - $10 | 7) HP Series 80 I/O ROM and Interface Pocket Guide - $10 | 8) HP82163 HP-IL Video Interface Owners Manual - $20 | . . .
[Contact John Robinson | View complete ad] Posted 27 Jan 2010

WTB: Charging plug for Classic series calculators >> (WTB)
This is the three-conductor plug that goes into the calculator for charging and running off of wall power. The one for my 35 works but currently has its integrity maintained with epoxy and electrical tape. | I'd like to splice on a "new" one, if anybody has one available from a dead charger. I only need an inch or two of good cable attached. | Thanks, | Tim
[Contact tim m. | View complete ad] Posted 24 Jan 2010

Looking for HP41 Optical Wand (82153A) (WTB)
Also, looking for extended memory modules. | please contact me.
[Contact Tom Leuchtner | View complete ad] Posted 23 Jan 2010

Replacement Battery Door for Original 12C (WTB)
My 12C has been running perfectly (now on second set of batteries) for about 26 years. But I have lost my battery door. It is the small one, as opposed to the larger one that is used on the newer 12C and 12C Platinum. Can anyone help me, or direct me to someone who has them for sale? Thanks. | Chuck | chouseworth@mindspring.com
[Contact Charles Houseworth | View complete ad] Posted 22 Jan 2010

Battery Pack for Woodstock Series HP (WTB)
I am looking for a battery pack for my HP25. Years ago, when the batteries corroded, I stupidly threw the entire battery pack away, intending to purchase a replacement from HP. I procrastinated, and of course, they went out of production, so now I'm stuck with a good calculator and no battery pack. | Thanks | Randy
[Contact Randy Wood | View complete ad] Posted 21 Jan 2010

Dead HP41 Optical Wand (82153A) or Printer (82143A) (WTB)
Just looking for the cable to plug into the calc really. Anything considered. | Thanks | John
[Contact John Robinson | View complete ad] Posted 18 Jan 2010

HP-35 with bug, HP-41 Set, HP-19C Set (AUCTION)
For sell: | - HP-35 Set (version with bug in ROM, hard case) (http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=330396342882) | - very big HP-41 Set (http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=330396361768) | - HP-19C Set (http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=330396373059) | Here ebay article numbers: | 330396342882 | 330396361768 | 330396373059 | Regards | Marc
[Contact marc-hp-selling-off | View complete ad] Posted 18 Jan 2010

HP Topcat thermal printer head (WTB)
I'm looking for a working thermal printer head for HP printing calculator like 91, 92 and 97. Thanks in advance and kind regards.
[Contact Ignazio Cara (Italy) | View complete ad] Posted 17 Jan 2010

HP-27 (Woodstock series) (WTB)
I'm looking for a working and in good shape HP-27, with/without original owner's handbook. I live in Italy and I have a PayPal account. Thanks in advance and kind regards.
[Contact Ignazio Cara (Italy) | View complete ad] Posted 17 Jan 2010

HP-41 & HP-IL interfacing/measurement/data logging (FSOT)
Based on the great success of the products and the permanent request of HP41 enthusiasts from the whole world, the following HP41 accessories available also for future times: | HP-IL/PC Interface Card (for PC motherboards with ISA Bus slot, compatible to DOS / WIN95 / WIN98 / WIN2000 / WIN NT / WIN XP and Link Plus, TRANS41, EMU41, EMU71 software). | HP-41 Input/Output -Board & IL2000 Interface System manual (over 708 pages measurement- and control applications, data logging). | The advanced EXT-IL-PLUS Module (described in the IL2000 Interface system manual). | IL2000 Interface Sy. . .
[Contact Christoph Klug | View complete ad] Posted 16 Jan 2010

NIB HP 48GX - NEW Plus TransFile 48 (AUCTION)
This is one of the items in my personal collection. It is a New HP 48GX. It includes everything in the original retail box (manuals still in factory shrink wrap.) It has passed the self tests. Serial number is: 3537S04191. It includes also new TransFile Win48 adapter cable, plus new Shareware Vol 1 CD. Items are available for inspection in San Ramon, California. | Auction ends on Tuesday Jan 19, 2010 at 19:05:48 PST. | http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150405552928
[Contact R.J. Soto | View complete ad] Posted 15 Jan 2010

Looking for Inoperative HP-29C or Keyboard for same (WTB)
Seeking a good keyboard/face assembly for an HP-29c. This could be in the form of an unrepairable or broken HP-29C as long as the keyboard/face assembly is good or the assembly itself. | Thanks, Jerry
[Contact Jerry Kovacs | View complete ad] Posted 14 Jan 2010

HP-41 Pac BOXES (WTB)
Hi, I'd like to buy boxes for a bunch of HP-41 Pacs. I have all the rest (module, manual, most overlays) but might still be interested in buying a complete set. Please email me with realistic price | at ppl4world at yahoo dot com. Thanks Peter! | AutoStart | Aviation | Circuit | Extended I/O | Financial Decision | Games | Home Mgmt | HP-IL Development | Math | Math/Stat | Navigation | Real Estate | Securities | Statistics | Stress Analysis | Structural Analysis
[Contact PeterP | View complete ad] Posted 12 Jan 2010

HP-41 replacement Flex-PCB (FS)
Hi all. | Finally the new batch of Flex-PCB for the HP-41 is ready to ship. | Price tag has been kept in the 22Euro, PayPal to 'sulaco2000 {at} hotmail {dot} com' is preferred payment method and shipping is included. | Further info at: http://www.clonix41.org/Maintenance/IO_Block/IO_Block.htm | If you have already joined the waiting list you should already have received a confirmation e-mail. Please contact me in case you didn't. | Thanks for your interest and kind regards from the Canary Islands. | Diego.
[Contact Diego Diaz | View complete ad] Posted 10 Jan 2010

NIB HP 200LX Palmtop PC - NEW (AUCTION)
I have a NIB HP 200LX up for auction in eBay. These are in increasingly high demand, and it's very hard to find new ones. If you have any questions don't hesitate to contact me. Item is available for inspection in San Ramon, California. | http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150403649415 | Auction ends Thursday Jan 14, 2010, at 19:08:53 PST. | Thanks! |
[Contact R.J. Soto | View complete ad] Posted 8 Jan 2010

HP 9880 Mass Memory Subsystem (WTB)
Hello, | I'm looking for a Hewlett-Packard 9880A/B disc drive to use with a 9830 desktop computer, either functional or for parts. The 9880 was introduced in 1973 and was known as the "Mass Memory Subsystem." You can read more about it at www.hp9830.com. | Does anyone have, or know where I could find such a drive? | Any leads would be appreciated. I'm located on the east coast of the United States. | Cheers, | Dan | www.decodesystems.com/wanted.html
[Contact Dan Veeneman | View complete ad] Posted 8 Jan 2010

HP-41CX very good condition (FSOBO)
HP-41CX s/n 2450S45305 in excellent condition. All covers and soft case included. This unit has no visible scratch or dent. Rubber feet are almost like new. 100% working unit.
[Contact Bruno Dionne | View complete ad] Posted 6 Jan 2010

HP-41CV (FSOT)
HP-41CV s/n 2501S41142 in very good cosmetic condition. Display and keyboard on excellent condition. Soft Case included. The little side port cover is missing. All other cover in good condition. Two gold metal connector had Pure Silver compound restauration. Electrical conductivity is the as good as gold (0.8 Ohms). | Can email photo if you wish. Garanteed not DOA.
[Contact Bruno Dionne | View complete ad] Posted 6 Jan 2010

HP-41 HP-71 HP-75 accessories (AUCTION)
71 Modules, 41 WAND, 75 Cardholder etc. | HP 2225B Thinkpad up for auction soon. | English and German Books soon. | http://29f.de/a | Happy New Year | Regards, | Tom
[Contact Tom | View complete ad] Posted 3 Jan 2010

Various old magazines for sale (FSBO)
Issues of Micro Revue, PPC-Toulouse, PPC-Australia, EduCALC catalogue, Dutch HP Group magazine. No, I am not selling out my collection, I am just cleaning up all the stuff I have duplicates of and material I do not have any need for. In case you have serious interest or want more information (detailed scans, contents etc), please contact me. Pictures of the items and a more precise description at http://www.kuiprs.nl/forsale.htm
[Contact Meindert Kuipers | View complete ad] Posted 1 Jan 2010

Crazy found: Gessa GPSpac for HP 95LX (FSBO)
Found in an old closet: (I'll put it up for auction very soon...) Plastic suitcase. GPSpac module. Software Disk. Power Cable. English Manual. BUT: I don't have a way to test whether it works ;-( . So I need to offer it as defective collector's item.
[Contact Tom | View complete ad] Posted 30 Dec 2009

offer 1 clonix 41 module in exchange for 4 X memory modules (4 HP82181A modules) (TRADE)
offer 1 clonix 41 module in exchange for 4 X memory modules ( 4 HP82181A modules)
[Contact Gonzalo Fernandez (Spain) | View complete ad] Posted 29 Dec 2009

HP 41 (WTB)
Hello | I am still looking for an entirely new HP 41 C(X)calculator, never used, with all the booklets and - if available - memory cards for use in the 'economics'. Can anyone make me an offer ? Thanks Dominique | Please send an email to dominique.deprez@skynet.be |
[Contact Dominique Deprez | View complete ad] Posted 27 Dec 2009

HP-41CX motherboard (WTB)
I need a main board for my HP-41CX, only the board is absent!
[Contact Michel Beaulieu | View complete ad] Posted 26 Dec 2009

HP-01 official stainless steel pen, batterie doors, manuals, memory card +++ (FSBO) Posted 21 Dec 2009
LogicDart Probes (WTB) Posted 19 Dec 2009
41CV + 2 modules (FSBO) Posted 7 Dec 2009
HP-27 (FS) Posted 7 Dec 2009


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