Early
Electronic
Calculator
CDK C1HB Calculator

Manufacturer: CDK
Model: C1HB
Year: 1977
Form: Desktop
Functions: Basic four, user memory, accumulator, constant, %, square root
Number of Digits: 12
Display Type: VFM
Display:itron FG139A3
Logic Technology: LSI
Diodes: 12
Transistors: 2
IC Complement:Texas Instruments TMS 1273
Tech. Data Level: 2
Tech. Data Source: RE
Tech. Data Pages: 1
Tech. Data:Schematic (pdf)


Internal view.


- Unit Log -

Serial Number: 453342
Year of Manufacture: 1977 (IC stamped with 7710, IC of second unit with 7623)
Date of Receipt: 1970s
Source: Unknown.
State upon Receipt: Good physical condition, functional.
Current State: Fully functional (12 Jun 2001).



  CDK C1HB
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