DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This Exactra 23 was manufactured
in November 1974 by Texas Instruments |
The Exactra 23 with its 8-digit Bowmar Opto-Stick display and costly keyboard. |
The membrane switches of the keyboard. |
The double-sided printed circuit board (PCB) of the Exactra 23. |
Close-up of the TMS0803 single-chip calculator circuit. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 18, 2018. No reprints without written permission.