Vintage Electronic Calculators:

Overview of Brands


YSE: 809B
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AKA: Mathematician, AKA (Label): MODEL: YSE-809B, Product number (P/N): 809B,
Keywords/Tags: 809B | Mathematician
Date of intro: ~1976,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 26, #Key-Black: 12, #Key-Red: 3, #Key-SilverColor: 11,
Miscellaneous switch: [OFF-ON],
Classification: / Pocket,
Featuring: Procent, Square root,
Patents: 6430256,
Main Components: ROCKWELL: A5902CA,
Collector value: 8/10,
Courtesy of: SORRENTINO Maurizio,


Internals (PCB)
(Courtesy of: SORRENTINO Maurizio)

Internals (PCB bottom)
(Courtesy of: SORRENTINO Maurizio)

Label / Bottom
(Courtesy of: SORRENTINO Maurizio)

Protection (pouche)
(Courtesy of: SORRENTINO Maurizio)

Created: 19-oct-2016, Manual-update: 19-oct-2016, Batch-update: 11-jun-2021             

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5 Pic(s),


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