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DummyBrand_parts(E): MK9999 (CalcChip)
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Date of intro-: ~1971, TimeKeeper IC's (sorted by Year): (Link),
Classification: / Part / Calculator-Chip,
Featuring: Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Info: Low voltage version of the MOSTEK: MK6010.

Item

IC (Member)
7140G (QP3550L, 7140G)
(oct-1971)
(Courtesy of: DENTAKU MUSEUM)
Link-1: DENTAKU MUSEUM

IC (Member)
7203L (QP3550L, 7203L)
(jan-1972)

IC (Member)
7205E (QP3550L, 7205E)
(feb-1972)

IC (Member)
7226A (QP3550L, 7226A)
(jul-1972)

IC (Member)
7240C (QP3550L, 7240C)
(oct-1972)
(Courtesy of: TOUT Nigel)
Link-1: VINTAGE CALCULATORS WEB MUSEUM

IC (Member)
7305K (QP3550L, 7305K)
(jan-1973)
(Courtesy of: OLDCOMPUTER.info)
Link-1

IC (Member)
7312J (QP3550L, 7312J)
(mar-1973)

Created: 01-jan-2015, Manual-update: 06-may-2019, Batch-update: 10-sep-2025             

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