Fault analysis equipment for British Post Office Monarch 120 system digital PABX (private automatic branch exchange) 1980-2000
Electronic Pocket Programmable Calculator model TI 58C. Assembled in Holland TI 58C Programmable Calculator 1977
EXPLORER 8000 seismic amplifier by Texas Instruments, c. 1960, in aluminium carrying case. 65x45x8 cm EXPLORER 8000 seismic amplifier by Texas Instruments 1960
Electronic pocket calculator by Texas Instruments, model TI-58, programmable. c.1978. Electronic pocket calculator by Texas Instruments circa 1978
4 DFS 3 amplifier cards and 1 filter, by Texas Instruments, (from Seismic recording equipment) 4 DFS 3 amplifier cards and 1 filter
Silent 700 portable data terminal, model 725, made by Texas Instruments, c.1974 Silent 700 portable data terminal circa 1974