Vintage Electronic Calculators:

Overview of Brands


RADIO SHACK: EC424 (version-2)
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AKA: DUAL POWERED, SOLAR . BATTERY, AKA (Label): EC-242, CAT.NO. 65-564, DUAL POWERED CALCULATOR (SOLAR & BATTERY), Product number (P/N): 65564 (65-564),
Keywords/Tags: 65564 (65-564) | EC424 (EC-424) | DUAL POWERED, SOLAR . BATTERY
Date of intro: 1989, Origin: Thailand (List), Dimensions: 127x70x8mm, Weight: 79g,
Power: Battery + Solar,
Display: Type = Display (LCD) (List), Digits = 8+1,
Number of keys: 23, #Key-Black: 22, #Key-Orange: 1,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Serie-members: RADIO SHACK: EC424 (version-1) (1 Blue Key); RADIO SHACK: EC424 (version-2) (1 Orange Key),
Collector value: 6.5/10,
Courtesy of: COULOMBE Alain,


(Courtesy of: COULOMBE Alain)

Label / Bottom
(Courtesy of: COULOMBE Alain)

Protection (billfoald, wallet case, flip-cover)
(Courtesy of: COULOMBE Alain)

Created: 16-nov-2011, Manual-update: 08-oct-2019, Batch-update: 17-jun-2021             

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4 Pic(s),


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