HP-71B Compendium Article Update

[Sylvain Cote]

Thank you Matthias, these pictures are coming at an excellent time, see this thread

I have three HHP modules in my collection, but unfortunately I do not have any CMT-CR modules yet.

The models that I have are:

HHP 71 M/M 32KB EPROM (no battery backup)
HHP 71 M/M 32KB RAM / 32KB EPROM (no battery backup)
HHP 71 M/M 96KB RAM (no battery backup)

From your pictures, I see that ...
1) CMT64 -> 2 x 32KB front port modules was used and it has a battery backup
2) CMT128 -> 4 x 32KB front port modules was used and it has a battery backup (surprise, why not use 2 x 64K RAM front port modules instead ???)
3) HHP 32E -> yep same as mine
4) HHP 64K -> surprise here, they seem to have used 1 x 64KB RAM board instead of 2 x 32KB boards like the 96KB RAM module (3 x 32KB)
5) HHP 96K -> again same as mine
6) HHP 160K -> I was not aware that HHP had produced a 160KB RAM module, image is not clear enough to distinguish the board types (probably 2 x 64KB + 1 x 32 KB)
7) HHP 32KE -> actually it is a HHP 71 M/M 32KB RAM / 32KB EPROM module, same as mine

A new compendium update will be published this week that will include the card reader modules (HHP, CMT & FRAM71) among other things.

Best regards,

Sylvain