CALCUSEUM SINCLAIR: 4 Function

SINCLAIR: 4 Function
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	Product number (P/N): 4 Function, Keywords/Tags: 4 Function Date of intro: ~1975, Number of keys: 19, #Key-Black: 11, #Key-Blue: 5, #Key-Red: 3, Keyboard Array (Rows x Columns): 03x07, Classification: / Pocket / Prototype, Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Collector value: 9/10, Info: Rare prototype, made of metal and/or resin and painted mustard yellow
Item

Product number (P/N): 4 Function,
Keywords/Tags: 4 Function
Date of intro: ~1975,
Number of keys: 19, #Key-Black: 11, #Key-Blue: 5, #Key-Red: 3,
Keyboard Array (Rows x Columns): 03x07,
Classification: / Pocket / Prototype,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Collector value: 9/10,
Info: Rare prototype, made of metal and/or resin and painted mustard yellow

Item


Bottom (Courtesy of: GRASSI Claudio)	Front (Courtesy of: GRASSI Claudio)	Side (Courtesy of: GRASSI Claudio)	Perspective, profile view (Courtesy of: GRASSI Claudio)	Closed (Courtesy of: GRASSI Claudio)	Display (Courtesy of: GRASSI Claudio)	Keyboard (Courtesy of: GRASSI Claudio)	Keyboard (Courtesy of: GRASSI Claudio)

Created: 21-dec-2014, Manual-update: 26-oct-2021, Batch-update: 06-mar-2025

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