HP Forum Archive 08

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HP 41 Port Extender Message #1 Posted by John Kercheval on 11 Apr 2002, 12:58 p.m. Was cleaning up and "rebatterying" my hp system yesterday, whaen I came upon my custom 2X Speed CV plugged into the Port Extender. Anyone remember this neat device? It fit below the 41 Via Velcro, and added 6 aditional ports to the 41. Made by AMe Design an affiliate of EduCalc in Marina Del Rey, CA. FYI, mine has the Financial I Module, the Extended IO Module, The Home Managemment Pac, The Thermal Pac, The Il Development pac, an an Xmem in it. I have the Card reader plugged into the main unit & the wand attachment as well. What a collectable. John Kercheval.

Re: HP 41 Port Extender Message #2 Posted by Richard Garner on 11 Apr 2002, 1:38 p.m., in response to message #1 by John Kercheval There is one on e-bay now.

Re: HP 41 Port Extender Message #3 Posted by John Kercheval on 11 Apr 2002, 4:37 p.m., in response to message #2 by Richard Garner Wow1 You are correct and as I write this the bidding is at $41.00 ! there's an omen! John Kercheval

Re: HP 41 Port Extender Message #4 Posted by John Kercheval on 19 Apr 2002, 8:58 a.m., in response to message #2 by Richard Garner FYI This went for a whopping 152.50. GO PORT EXTENDER! John Kercheval

Re: HP 41 Port Extender Message #5 Posted by CJ on 29 Apr 2002, 8:52 p.m., in response to message #4 by John Kercheval I have 2 of these. One is for my 41C fully loaded. IL, Ext IO, Ext Func. and 2 X/memorys and a wand. Card reader, Quad and Time in calc. The other I use with my 41CX it has IL, Ext IO, PPC Rom and and Games module. 2 ext mems and card reader in calc. BTW there are 7 ports on these. There is one on the top that mirrors port 3 of the calc. This is a must have if you have a 41C. CJ

Re: HP 41 Port Extender Message #6 Posted by Vassilis Prevelakis on 1 May 2002, 5:26 a.m., in response to message #5 by CJ Why bother with a port extender when you can have the ability to download ROM images to a PIC. In this way you can use images from ROMs that you do not have since they are bundled with many HP-41 emulators. Check the pictures of a the PIC board placed in the case of an HP 82143A printer. The PIC board and software were developed by ji (search for MLDL in the museum archives). **vp

Re: HP 41 Port Extender Message #7 Posted by CJ on 1 May 2002, 7:47 a.m., in response to message #6 by Vassilis Prevelakis That looks AND sounds like a great thing but.... were do I get something like that and how do I program it? I have a 82143 that I hardly use that I could hack but could you direct me to more info about making one or getting one? The site you posted a link to doesn't say anything about that aspect of this unique device. Christopher

Re: HP 41 Port Extender Message #8 Posted by Vassilis Prevelakis on 1 May 2002, 11:58 a.m., in response to message #7 by CJ > The site you posted a link to doesn't say anything about that aspect of this unique device. sorry I forgot to add the link - I've updated the page, and I am including the link here. **vp

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