SWTPC was not the only vendor of SS30 and SS50 boards.

Smoke Signal Broadcasting M-16A Memory Board

Digital Research Corp. 16K RAM

DS68 Video DisplayDS68 Video Display

Micro Works 2708 Programmer

SMS Floppy Disk Controller Southeastern Micro Systems DDC-16 FDC

Digital Research 64k MemoryDigital Research / Tanner 64K Memory Board

Seals 8k Memory BoardSeals Electronics 8k Memory Board

Homebrew 32K Static RAM

PERCOM SBC/9 Single Board Computer

Boaz Dymanic Memort BoardBoaz Dymanic Memory board

Quality Research ACIA Interface

QRC Proto BoardQuality Research SS-50 Proto Board

QRC PIA Interface Quality Research PIA Interface

QRC Motherboard Quality Research Motherboard

Michael Holley's SWTPC Collection Home Page
This page was last edited June 16, 2014