The HPCX was the same as the HPCV but added the Time module The phonebook-sized manual dwarfed the calculator, let alone the tiny ROM. View and Download HP CX quick reference manual online. HPCX Calculator pdf manual download. Hp HPCX Pdf User Manuals. View online or download Hp HPCX Service Manual, Quick Reference Manual.

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Only one such module could be installed. The HPA memory module added 64 registers. For plain string input do not use XEQ. To enter this command press: Up to four such modules could be added to reach a total of registers. Note that two extension port covers have been marked with a black pen hardly noticable.

Original HPC cardboard box in good condition. The remaining registers can be used for program code. Specifies the amount of number registers nnn to allocate.

You can enter a program that starts with a local label. I have a couple of CL myself, and it has happened that once per calculator so far.

HP -41CX Quick Reference Manual

Large battery pack or external power supply. The “flying goose” and the “backwards flying goose”. This time I didn’t install a little spring which obstructed the card slot – now it works!! Data inside extended memory is organized in files which can store programs or data.

One with standard key symbols, one with no labels. German, pages, Replaced the rubber wheel – now it doesn’t work any more at all! Especially the possibility to access ROM code made it the preferred toy mznual “hackers”. Infrared module HPA, serial number It is also one of the first calculators with support for alphanumeric strings – but in my opinion this makes the display hard to read.


Allowed for “synthetic programming” where machine code was accessible thru illegal commands. Both reader and manual in excellent condition.

B, Septemberprinted in Singapore. After the listing has been stopped when this “END” is displayed switching to PRGM mode will display the manuak and it is possible to delete it step-by-step to reclaim program memory. Labels and mutli-character string labels.

Also, it is not possible to use “CLP” to delete the memory occupied janual the program! Apparently, only two such modules could be installed. A calculator with cult status.

HP HP-41CX Manuals

Unfortunately, my cleaning efforts made things even worse not visible on the picture. Delivers highly accurate results! Refer to the table on the back of the calculator for special keys manuap. The following files are available on the Systemyde website: White keyboard overlay with normal function codes.

One one side marked “”. Sheet of small adhesive labels with programming functions.


Various information on “synthetic programming”. German, pages, 1st issue, manuaal A very popular calculator. The graphics display of manuak of the Pioneer models is much better in this respect. The HPA “X-memory” module increased the extended memory space by registers bytes. Note that the printer A can power the HP And although it looks modern it is rather slow. Also, Mxnual provided a respectable number of software packages as well as ROM modules with pre-programmed solutions.

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The HPA quad memory majual added registers giving a total of registers. Within a program local labelsA – J and a – j can be used. Reportedly, HP never built this power supply but rather release a rechargeable battery pack that had the connector built-in. Mint out of the box, everything like new except the cardboard box. Apparently broke at some time because the enclosure is glued. Cardboard box with 6 rolls of paper for the A or A printer.

A HPCV with added extended memory, a built-in timer module and the extended functions module.

Without most of the keyboard labels, to be used with keyboard overlays. About 70 magnetic cards for the magnetic card manuxl. One blank overlay, one standard functions overlay both plastic. Magnetic program card holder with 38 unmarked magnetic cards and one red card used to clean the magnetic head of the card reader.

Also, there isa label reading “34 03 “. Type, Precision, Input Mode.