Powering up a module from the IBM 604: an electronic calculator from 1948

1948 was an interesting time for computing. For decades, businesses had used punch card equipment that added and sorted electromechanically....

Anyone here interested in possessing this Texas Instruments TI-5130 Electronic Calculator? It works! (As far as I can tell, I'm no mathematician) I might even have a roll of printer paper that will fit.
#TexasInstruments #TI-5230 #ElectronicCalculator
#retrocomputing

Repaired and restored these Sinclair Scientific and Programmable Calculators from around 1975. All in great condition and working again.

#ElectronicCalculator #Sinclair #SinclairScientific #SinclairProgrammable
[23/02/2021]

Just restored this 1977 Texas Instruments Electronic Calculator, TI-51III-DATAMATH. In great condition and working fine again after 44 years.

#ElectronicCalculator #TexasInstruments #TI51
[23/01/2021]