(HP71B) Front port module adapter or defect module; anyone has this?

[floppy]

Hello,

has anybody a front module
- defect (could be extended/soldered with wires to be used as sniffer)
- adapter to connect to the board with outputs wired
- with a description how to sniff the signals coming at a 4k .. or 32k or .. 64k module RAM
?

If yes, we should discuss offline via PM a borrowing, a payment, an exchange (4k RAM or other HP parts).

I am trying to understand the interaction between HP71B and RAM memory modules (NOT ROM storage since this is covered by MULTIMOD) placed in the front at switch on, memory map definition inclusive state engine memorization (in the RAM.. in the HP71B..?), access writing, access reading ( single chip.. till 4x 32k chip in the RAM).