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Major Classification
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Hardware
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Manufacturer
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??? Unknown
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Model
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Type
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Calculator - Electronic
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Description
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Fragments of an old discrete component calculator
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Click on this thumbnail to see a larger image
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Shift Register Board | 
Display Driver Board | 
Numeric Displays - front view |
Numeric Displays - solder connections |
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Comments
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I bought these fragments off some electronic engineering students at University of Western Australia in 1974.
They had bought an entire calculator from Edwards Business Machines in Perth.
This encouraged me to go round to Edwards and buy a Sharp CS-30A (see under Sharp)
The indicators are in fact side lit perspex sheets with multiple conical pits drilled in them to represent the digits.
The pcb's are stored in box "Interest 3"
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Acquired From
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Unknown 1974
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