EEVblog #663 - Compucorp 322G Calculator Teardown

Teardown Tuesday Inside a 1973 vintage programmable scientific desktop calculator. Plus an attempted repair. Service Manual: 326 The P2102 is a 1K x 1 bit SRAM, so looks like a 4 bit processor architecture. Forum: Teardown photos: EEVblog Main Web Site: The 2nd EEVblog Channel: EEVblog Amazon Store (Dave gets a cut): Donations: Projects: Electronics Info Wiki: Теги: Calculator (Invention),compucorp,1970s,calculator,desktop calculator,teardown,pcb,processor,4 bit,sram,intel,Electronics,Computer,Technology