This page has links to photographs of vintage calculators on this website.
Click on a calculator to see a larger photograph of it, then click on your browser "Back" button to return to this
page.
Calculators marked "Details" are not in the book "A Collector's Guide to Pocket Calculators", but details are in the
section Calculator Book Addendum on this site.
UDM - See Universal Data Machine.
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UIT
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UIT 85X. Featured calculator
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UIT 22SP Euro market, resembles Sinclair designs, no other information, please email if you have any information on the company.
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Unico (H-803A instruction booklet says "Wah Chang Group of Companies. Manufactured by United Electronic Engineering Corp. Wah Chang Corporation is a manufacturing company based in Albany in the U.S. state of Oregon. United Electronic Engineering Corp. is a Singapore company.")
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Unico H-803A. Details.
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Unico P-805. Details.
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Unico R-846 made in Singapore.
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Unicom (USA company, bought out by Rockwell c.1972)
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Unicom 102. Featured calculator
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Unicom 103.
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Unicom 104+, inside.
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Unicom 201
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Unicom 801.
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Unifive Industries Corporation
(U.S.A. manufacturer)
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Unifive 301 aka "Data Brain II" (similar to Calfax Data Brain II).
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Unifive 301 aka "Magic Slate".
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UniMark (U.S.A. marketer)
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UniMark 805T. Details.
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Union Carbide (U.S. chemical company)
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Union Carbide (probably a promotional item). Details.
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Unisonic (Note: many Unisonic models have a number on the front (840) and a variation number on the back (840-C). Often there was a difference in the features or keys of the model from another variation of the same basic model number.)
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Unisonic, no model # shown, if you have info on model #, please email.
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Unisonic 21 "Blackjack", blackjack game.
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Unisonic 676. Details.
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Unisonic 711.
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Unisonic 737.
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Unisonic "Slide Rulette" 738
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Unisonic 740 ("740-B" on back).
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Unisonic 790RM.
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Unisonic 811, green VFD.
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Unisonic 811C, red LED.
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Unisonic 840
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Unisonic 890 ("890-A" on back).
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Unisonic 911L.
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Unisonic 931-B.
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Unisonic 940.
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Unisonic 1048R. Details.
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Unisonic 1299R.
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Unisonic 1511L.
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Unisonic 1542L.
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Unisonic CB-14.
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Unisonic Mini. Details.
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Unisonic "Slide Rulette" 888
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Unitra Eltra (Polish company)
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Unitra Eltra BRDA 10U. Details.
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Unitra Eltra BRDA 11U, inside. Details.
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Unitra Eltra BRDA 12U, inside. Details.
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Unitra Eltra K-741. Details.
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Unitra Eltra K-741M. Details.
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Unitra Eltra K-765M. Details.
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Unitrex (EIKO Business Machine Co., Ltd., Tokyo, Japan)
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Unitrex 80KF
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Unitrex 92SR, scientific 'Slide Rule' calculator. Details.
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Unitrex 95SL
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Unitrex 801MR (with malfunctioning display).
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Unitrex 901R.
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Unitrex 902AS.
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Unitrex 902RM
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Unitrex Mini Calculator.
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Unitrex MINI HANDY.
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Unitrex mini handy 80M.
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Universal (IEE (Industrial Electronics & Engineering Ltd.), Singapore. Euro-market)
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Universal 101. Details.
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Universal 202.
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Universal Data Machine
(UDM) (Chicago, U.S.A.)
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Universal Data Machine (UDM) 9V9.
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Universal Data Machine EXPONENT VIII, rear. Details.
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Universal Data Machine (UDM) TKB001, photo2, inside, made in USA, very early (1971-72).
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Universal Data Machines TKB 0001 and TKB 02
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Unknown manufacturer/distributor
(If you can provide any information about these please contact us).
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Unknown 2
, Child's Teaching Speaking Calculator. Featured calculator.
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Unknown 3, tiny calculator, inside. Featured calculator.
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Unknown 4, tiny scientific calculator, inside. This appears to be a partly assembled kit calculator with some components missing, including keys. Featured calculator.
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TC-8M. Details
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U-TAC
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U-TAC TC-8.
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Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2024.