WP-2

Manuals

https://archive.org/search.php?query=Tandy%20WP-2

RAM

Internal ram upgrade socket can take either a 32K or a 128K chip.

• 32Kx8 parallel SRAM, 5v, low power, DIP-28

• 128Kx8 parallel SRAM, 5v, low power, DIP-32

Hitachi HM628128LP

ICSI IS62C1024 (IS62C1024LL-70W)

Alliance AS6C1008

BSI BS62LV1027 (BS62LV1027PC-70)

Does not come in a DIP package, but would work with a simple adapter pcb:

Cypress CY62128E

ISSI IS62C1024AL

If you want to get real crazy, this probably works, although may not fit.

https://www.digikey.com/product-detail/en/DS1245AB-85/DS1245AB-85-ND/

Expansion Card

DIY

https://github.com/bkw777/WP-2_IC_Card

References / notes

http://randomvariations.com/wp-content/uploads/2014/09/IMG_8920_wp2_zork1.jpg
Toshiba Memory Card / IC Card
32K, 64K, or 128K RAM card
32K, 64K, 128K, or 256K ROM card

Connector that fits the Expansion port:

Similar to PC-Card/Cardbus/PCMCIA, but thinner with a single row of pins instead of two rows of pins.

38 pins, single row, 1.27mm pitch

Card main body 3.2mm thick x 54mm wide

File:JC20-B38S-F1.pdf

JAE JC20-B38S-F1-A1 0.29mm-0.45mm pcb, centered, https://www.asapaog.com/rfq/japan-aviation-electronics/jc20-b38s-f1-a1/

JAE JC20-B38S-F2-A1 0.5mm pcb, offset

JAE JC20-B38S-F3-A1 0.2mm pcb, offset

Memory Battery

CR2430

Binary Apps

CamelForth FORTH Interpreter
ZXZVM Infocom Z-Machine Interpreter