4x Texas Instruments SN74LS245N buffers - System pulled from BBC Micros Tested and working Delivery via RM 2nd class
Texas Instruments 256kb EEPROM ( UV erasable)
Linear & Interface Circuits Product Application Volume 2 Texas Instruments 1986
Linear & Interface Circuits Product Application Volume 1 Texas Instruments 1986
Texas Instruments MOS Memory Data Book Commercial and Military Specs 1989
Texas Instruments Testability Primer 1991, vintage manual
Texas Instruments Short Form Semiconductor Catalogue