HP 41 Port Extender

[John Kercheval]

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.

[Richard Garner]

There is one on e-bay now.

[John Kercheval]

Wow1 You are correct and as I write this the bidding is at $41.00 !

there's an omen!

John Kercheval

[John Kercheval]

FYI

This went for a whopping 152.50.

GO PORT EXTENDER!

John Kercheval

[CJ]

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

[Vassilis Prevelakis]

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

[CJ]

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

[Vassilis Prevelakis]

> 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