WP-2

Manuals

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

RAM Disk

Battery-backed SRAM powered by the wall power when present, the AA batteries when wall power is absent, and the CR2430 coin cell when wall power and AA batteries are absent.

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

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

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

Hitachi HM628128LP

Alliance AS6C1008 or from Mouser

ICSI IS62C1024LL-70W also LL or L, 70 or 55

BSI BS62LV1024PC-70 also 1025 or 1027 or 1028, PC or PI, 70 or 55

These do not come in a DIP package, but would also work with a simple adapter pcb:

Cypress CY62128E

ISSI IS62C1024AL / IS65C1024AL

Expansion Card

Original

DIY

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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

See the Service Manual pages 4-16 and D-1.

CamelForth FORTH Interpreter

ZXZVM Infocom Z-Machine Interpreter