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.
Radio Shack (a Tandy Corporation company, Fort Worth, Texas, U.S.A. See also Tandy.)
Radio Shack EC-220. Featured calculator.
Radio Shack EC-225 (type 1, red LED).
Radio Shack EC-225 (type 2, yellow LCD) "Statesman Thin LCD", rear. Details.
Radio Shack EC-312 "ASTRO", astrological calculator (photo in "Astro" mode).
Radio Shack EC-4001 has 'pregnant' bulge for battery, photo of bulge on rear of calculator and shaped support tray. Featured on British calculator site.
Radofin (Radofin Electronics (F.E.) Limited, Kowloon, Hong Kong. London office: King Street, London, W6. Triton was a registered trade name of the company).
Radofin 1000 "Triton". Details.
Triton 1200, resembles Taktile 1200. Featured on British calculator site.
Radofin Triton 1400. Featured on British calculator site.
Radofin 1515. Featured on British calculator site.
Radofin 1610 "Valuman". Featured on British calculator site.
Radofin 1660. Featured on British calculator site.
Radofin 2200, style 1.
Radofin 2200, style 2.
Rambler (Apparently a brand name of an Australian marketing company)
Ramsgate (Ramsgate Inc., Eveleth, Minnesota, U.S.A.)
Ramsgate M-11. This calculator features in the "One Hit Wonders" article.
RandS
Rapid Data (See the Calculator Companies section for more information.)
Rapid Data Rapidman 800, also available in green and in cream. Featured calculator.
Rapidex
RBM (U.S. company)
RBM Scientific, inside. This calculator features in the "One Hit Wonders" article.
Realtone (Euro-market company)
Realtone Conversion Master KP-60, inside. Details.
Regan (Regan Industries, Glendale, California, U.S.A.)
Regan RA900P. This calculator features in the "One Hit Wonders" article.
Remington - See Sperry Remington
Reno (German company)
RES (Radient Energy Systems, U.S.A.)
RES Mark IX. Featured calculator .
Revtronic (We have no information about this company. If you can help please get in touch with us.)
No model number on calculator but the original box calls it the 'REVTRONIC GRADUATE CALCULATOR'. Details .
Rex
RFT (East German (DDR) company)
RFT konkret 100 and konkret 200 models. Details.
RFT konkret 400 and Elektronika b3-19M. Details.
RFT minrex 75. Featured calculator .
Ricoh (Japanese company)
Ricoh Ricohmac 1213 (model 7471-22), inside. Details.
RJP
RJP 880. Featured calculator .
RMS International
Rockwell (USA company, started as calculator IC maker. Also sold calculators under the names Anita and Unicom. See the Calculator Companies section for more information.)
Rockwell 8R. Featured calculator .
Rockwell 9TR. Featured calculator .
Rockwell '76 (calculator made to celebrate USA bicentennial in 1976).
Royal (Originated as the Royal Typewriter Company, U.S.A, later one of the Litton Industries companies which included Imperial, Triumph and Adler)
Royal 80K, very small but chunky calculator.
Royal 81M, very small but chunky calculator.
Royal Digital III, inside 1, inside 2, highly unusual 4-digit tube display, operated using a stylus. Featured calculator .
Royal Digital IV, inside1, inside2, 8-digit LED version of the Digital III. Featured calculator.
Royal Digital V. Featured on British calculator site.
Royal Digital 5-M (Appears to be the same as the Royal Award GT8). Featured on British calculator site.
Royal Digital 5-T. Featured on British calculator site.
Royal Five GT. Featured on British calculator site.
Royal Mini Five. Featured on British calculator site.
Ruby (NEC (Nippon Electric Company), Japan. Any connection with the Ruby calculators from Sola Enterprise, below, is not known.)
Ruby (Sola Enterprise Co., Ltd., Taiwan. May be labelled "Advance Electronics Co., Ltd." on the back and not to be confused with the British company "Advance Electronics Ltd." Any connection with the Ruby calculators from NEC, above, is not known.)
Ruby 800, inside, this example labelled "Advance Electronics Co., Ltd.". Details.
Ruby 800M, this example marketed by Sola Enterprise Co., Ltd. Details.
Ruby Super Mini 800, this example labelled "Advance Electronics Co., Ltd.". Details.
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