Hi again.. perhaps someone can help me once again.. I do want to get clother infos about the HP-41 module codes. Many of the modules do have a code as 8250xX-Xxx, but can you help me to disassemble this code?

82500A 4k modules produced by HP for companies?
82500B 8k modules produced by HP for companies?
82508 ?
825009 ?

-Axx produced in America?
-Bxx produced in Brasil?
-Sxx produced in Singapore?

Did I forget something that can be interesting for other people?

Thanks to all, Matthias
Matthias

Hi,

Pquadrat should know.
At least he showed me some of those modules,
including the Buderus ones, I think ;-)

Raymond

BTW: Since you bought a W&W surveying module some time ago,
have you tried the software ? It was much work...

In my 1986 HP catalog, under the heading "HP-41, HP-71, and HP-75 Custom ROM Modules", I find for the HP-41: 82508A/B and 82509A/B, "Provides 4K or 8K bytes of memory with each module, or nearly 21,000 program lines with up to 4 8K byte modules." Also for the HP-71: HP82491A/B through HP82494A/B, "Provides 16K, 32K, 48K, or 64K bytes of program storage in a plug-in module. May be used in quantities of one to four for a maximum capacity of 256K ROM. (Minimum order: 100 modules.)" And for the HP-75: HP82726A/B through HP82729A/B, "Provides 8K, 16K, 24K, or 32K bytes of program storage in a plug-in module. May be used in quantities of one to three for a maximum capacity of 96K ROM. (Minimum order: 100 modules.)"