DATAMATH PICTURES

This TI-2550 Version 1 (Display 2) was manufactured in December 1974 by Texas Instruments (Date code 504 » wk 50 yr 1974).
The TI-2550 is powered three AA-sized rechargeable NiCd or four disposable Alkaline batteries.
The double-sided printed circuit board (PCB) of the TI-2550 Version 1 is centered around a TMS0601 single-chip calculator circuit.
Close-up view of the TMS0601 single-chip calculator circuit.
Close-up view of the SN27915 Segment Driver.	Close-up view of the SN27914 Digit Driver.
Close-up view of the DIS206A Display.