DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-71 Digital Alarm Clock
Date of introduction: | June 1974 | Display technology: | LED |
New price: | Display size: | 4 | |
Size: | 5.7" x 4.0" x 1.6" 144 x 101 x 40 mm3 |
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Weight: | 9.0 ounces, 255 grams | Serial No: | A71-1026194 |
Batteries: | Date of manufacture: | wk 09 year 1975 | |
AC-Adapter: | 110 V | Origin of manufacture: | USA |
Precision: | Integrated circuits: | TMS3834, SN75492, RCA CA3082 | |
Memories: | Displays: | TIL370 | |
Program steps: | Courtesy of: | Joerg Woerner | |
Download manual: | (US: 1.6M Bytes) |
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Both the TI-70 and TI-71 rely on the
TMS3834 Digital Alarm Clock
Chip and make use of an identical printed circuit board (PCB) with different options to distinguish between:
• TI-70 (no Alarm) or TI-71 (Alarm) • 50 Hz or 60 Hz operation • 12-hour or 24-hour display format Hz • PM indicator or Flashing Colon |
Don't miss the last watch sold by Texas Instruments.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.