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.)
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![Radio Shack EC-100 Radio Shack EC-100](../assets/images/autogen/RadioShackEC100_1_tlr.jpg)
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Radio Shack EC-100.
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![Radio Shack EC-200 Radio Shack EC-200](../assets/images/RadioShackEC200_1_tlr.jpg)
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Radio Shack EC-200, inside.
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![Radio Shack EC-220 Radio Shack EC-220](../assets/images/RadioShackEC220_1_tlr.jpg)
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Radio Shack EC-220. Featured calculator.
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![Radio Shack EC-225 Radio Shack EC-225](../assets/images/RadioShackEC225_1_tlr.jpg)
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Radio Shack EC-225 (type 1, red LED).
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![Radio Shack EC-225 (type 2) Radio Shack EC-225 (type 2)](../assets/images/RadioShackEC225A_1_tlr.jpg)
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Radio Shack EC-225 (type 2, yellow LCD) "Statesman Thin LCD", rear. Details.
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![Radio Shack EC-226 Radio Shack EC-226](../assets/images/rsec226_tlr.jpg)
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Radio Shack EC-226
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![Radio Shack EC-281 Radio Shack EC-281](../assets/images/RadioShackEC281_1_tlr.jpg)
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Radio Shack EC-281.
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![Radio Shack EC-312 “ASTRO” Radio Shack EC-312 “ASTRO”](../assets/images/RadioShackAstro_1_tlr.jpg)
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Radio Shack EC-312 "ASTRO", astrological calculator (photo in "Astro" mode).
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![Radio Shack EC-350 Radio Shack EC-350](../assets/images/RadioShackEC350_1_tlr.jpg)
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Radio Shack EC-350.
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![Radio Shack EC-415 Radio Shack EC-415](../assets/images/RadioShackEC415_1_tlr.jpg)
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Radio Shack EC-415.
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![Radio Shack EC-475 Radio Shack EC-475](../assets/images/RadioShackEC475_1_tlr.jpg)
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Radio Shack EC-475.
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![Radio Shack EC-490 Radio Shack EC-490](../assets/images/RadioShackEC490_1_tlr.jpg)
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Radio Shack EC-490.
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![Radio Shack EC-4001 Radio Shack EC-4001](../assets/images/autogen/RadioShackEC4001_1_tlr.jpg)
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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.
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Radofin
(Radofin Electronics (F.E.) Limited, Kowloon, Hong Kong. London office: King Street, London, W6. Triton was a registered trade name of the company).
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![Radofin 8P Radofin 8P](../assets/images/Radofin8P_1_tlr.jpg)
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Radofin 8P.
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![Radofin 870 Radofin 870](../assets/images/radof870_tlr.jpg)
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Radofin 870
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![Radofin 1000 “Triton” Radofin 1000 “Triton”](../assets/images/RadofinTriton1000_1_tlr.jpg)
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Radofin 1000 "Triton". Details.
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![](../assets/images/Triton1200_1_tlr.jpg)
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Triton 1200, resembles Taktile 1200. Featured on British calculator site.
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![Radofin Triton 1400 Radofin Triton 1400](../assets/images/Triton1400_1_tlr.jpg)
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Radofin Triton 1400. Featured on British calculator site.
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![Radofin 1515 Radofin 1515](../assets/images/Radofin1515_1_tlr.jpg)
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Radofin 1515. Featured on British calculator site.
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![Radofin 1610 “Valuman” Radofin 1610 “Valuman”](../assets/images/Radofin1610Valuman_1_tlr.jpg)
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Radofin 1610 "Valuman". Featured on British calculator site.
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![Radofin 1640 Radofin 1640](../assets/images/Radofin1640_1_tlr.jpg)
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Radofin 1640. Details.
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![Radofin 1660 Radofin 1660](../assets/images/Radofin1660_1_tlr.jpg)
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Radofin 1660. Featured on British calculator site.
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![Radofin 1720 Radofin 1720](../assets/images/Radofin1720_1_tlr.jpg)
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Radofin 1720.
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![Radofin 2055 Radofin 2055](../assets/images/autogen/Radofin1455_1_tlr.jpg)
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Radofin 2055, rear. Details.
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![Radofin 2200 Radofin 2200](../assets/images/rad2200_tlr.jpg)
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Radofin 2200, style 1.
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![Radofin 2200 Radofin 2200](../assets/images/Radofin2200_1_tlr.jpg)
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Radofin 2200, style 2.
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![Radofin 2500 Radofin 2500](../assets/images/Radofin2500_1_tlr.jpg)
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Radofin 2500. Details.
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![Radofin 2560 Radofin 2560](../assets/images/Radofin2560_1_tlr.jpg)
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Radofin 2560.
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Rambler (Apparently a brand name of an Australian marketing company)
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![Rambler Rambler](../assets/images/Rambler_1_tlr.jpg)
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Rambler. Details.
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Ramsgate (Ramsgate Inc., Eveleth, Minnesota, U.S.A.)
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![Ramsgate M-11 Ramsgate M-11](../assets/images/RamsgateM11_2_tlr.jpg)
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Ramsgate M-11. This calculator features in the "One Hit Wonders" article.
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RandS
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![RandS 810N RandS 810N](../assets/images/autogen/Rands810N_1_tlr.jpg)
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RandS 810N. Details.
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Rapid Data (See the Calculator Companies section for more information.)
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![Rapid Data Dataman 800 Rapid Data Dataman 800](../assets/images/Rapidman_1_tlr.jpg)
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Rapid Data Rapidman 800, also available in green and in cream. Featured calculator.
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![Rapid Data Rapidman 801 Rapid Data Rapidman 801](../assets/images/Rapidman801_1_tlr.jpg)
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Rapid Data Rapidman 801.
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![Rapid Data Rapidman 812 Rapid Data Rapidman 812](../assets/images/RapidData812_1_tlr.jpg)
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Rapid Data Rapidman 812.
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Rapidex
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![Rapidex 710 Rapidex 710](../assets/images/Rapidex710_1_tlr.jpg)
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Rapidex 710.
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RBM (U.S. company)
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![RBM Scientific RBM Scientific](../assets/images/RBMScientific_1_tlr.jpg)
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RBM Scientific, inside. This calculator features in the "One Hit Wonders" article.
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Realtone (Euro-market company)
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![Realtone Conversion Master KP-60 Realtone Conversion Master KP-60](../assets/images/autogen/RealtoneKP60_1_tlr.jpg)
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Realtone Conversion Master KP-60, inside. Details.
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![realtone KP-470 realtone KP-470](../assets/images/autogen/realtoneKP470_1_tlr.jpg)
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realtone KP-470.
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Regan (Regan Industries, Glendale, California, U.S.A.)
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![Regan RA900P Regan RA900P](../assets/images/ReganRA900P_1_tlr.jpg)
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Regan RA900P. This calculator features in the "One Hit Wonders" article.
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Remington - See Sperry Remington
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Reno (German company)
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![Reno 952 Reno 952](../assets/images/Reno952_1_tlr.jpg)
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Reno 952. Details.
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RES (Radient Energy Systems, U.S.A.)
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![RES Mark IX RES Mark IX](../assets/images/RESMarkIX_1_tlr.jpg)
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RES Mark IX. Featured calculator
.
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Revtronic (We have no information about this company. If you can help please get in touch with us.)
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![Revtronic Revtronic](../assets/images/Revtronic_1_tlr.jpg)
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No model number on calculator but the original box calls it the
'REVTRONIC GRADUATE CALCULATOR'. Details
.
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Rex
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![rex 8 rex 8](../assets/images/Rex8_1_tlr.jpg)
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rex 8. Details
.
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RFT (East German (DDR) company)
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![RFT konkret 100 RFT konkret 100](../assets/images/RFTKonkret100_1_tlr.jpg)
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RFT konkret 100. Details.
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![RFT konkret 100 & konkret 200 RFT konkret 100 & konkret 200](../assets/images/konkret1_tlr.jpg)
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RFT konkret 100 and konkret 200 models. Details.
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![RFT konkret 400 & Elektronika b3-19M RFT konkret 400 & Elektronika b3-19M](../assets/images/konkret2_tlr.jpg)
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RFT konkret 400 and Elektronika b3-19M. Details.
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![RFT minrex 75 RFT minrex 75](../assets/images/autogen/RFTMinirex75_3_tlr.jpg)
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RFT minrex 75. Featured calculator
.
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![RFT MR201 RFT MR201](../assets/images/RFT_MR201_1_tlr.jpg)
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RFT MR201, inside.
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Ricoh (Japanese company)
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![Ricoh RC-8A Ricoh RC-8A](../assets/images/ricoh_8a_tlr.jpg)
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Ricoh RC-8A.
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![Ricoh RC-8F Ricoh RC-8F](../assets/images/RicomacRC8F_1_tlr.jpg)
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Ricoh RC-8F.
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![Ricoh RC-8L Ricoh RC-8L](../assets/images/ricoh_8l_tlr.jpg)
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Ricoh RC-8L
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![Ricoh Ricomac X-10 Ricoh Ricomac X-10](../assets/images/RicohRicomacX10_1_tlr.jpg)
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Ricoh Ricomac X-10. Details.
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![Ricoh Ricohmac 1213 Ricoh Ricohmac 1213](../assets/images/autogen/Ricomac1213_1_tlr.jpg)
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Ricoh Ricohmac 1213 (model 7471-22), inside. Details.
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RJP
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![RJP 880 RJP 880](../assets/images/RJP880_1_tlr.jpg)
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RJP 880. Featured calculator
.
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RMS International
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![RMS International Zeta 7 RMS International Zeta 7](../assets/images/RMSZeta7_1_tlr.jpg)
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RMS International Zeta 7.
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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.)
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![Rockwell 8R Rockwell 8R](../assets/images/Rockwell8R_1_tlr.jpg)
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Rockwell 8R. Featured calculator
.
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![Rockwell 9TR Rockwell 9TR](../assets/images/Rockwell9TR_1_tlr.jpg)
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Rockwell 9TR. Featured calculator
.
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![Rockwell 10R Rockwell 10R](../assets/images/Rockwell10R_1_tlr.jpg)
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Rockwell 10R.
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![Rockwell 14RD Rockwell 14RD](../assets/images/Rockwell14RD_1_tlr.jpg)
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Rockwell 14RD.
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![Rockwell 14RD II Rockwell 14RD II](../assets/images/Rockwell14RDII_1_tlr.jpg)
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Rockwell 14RD II.
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![Rockwell 18R Rockwell 18R](../assets/images/Rockwell18R_1_tlr.jpg)
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Rockwell 18R.
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![Rockwell 18T Rockwell 18T](../assets/images/Rockwell18T_tlr.jpg)
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Rockwell 18T. Details.
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![Rockwell 20R Rockwell 20R](../assets/images/Rockwell20R_1_tlr.jpg)
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Rockwell 20R.
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![Rockwell 20T Rockwell 20T](../assets/images/Rockwell20T_1_tlr.jpg)
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Rockwell 20T. Details.
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![Rockwell 21R Rockwell 21R](../assets/images/Rockwell21R_1_tlr.jpg)
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Rockwell 21R.
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![Rockwell 22K Rockwell 22K](../assets/images/Rockwell22K_1_tlr.jpg)
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Rockwell 22K.
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![Rockwell 22MS Rockwell 22MS](../assets/images/Rockwell22MS_1_tlr.jpg)
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Rockwell 22MS.
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![Rockwell 24K II Rockwell 24K II](../assets/images/Rockwell24KII_1_tlr.jpg)
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Rockwell 24K II, inside.
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![Rockwell 24RD Rockwell 24RD](../assets/images/rock24rd_tlr.jpg)
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Rockwell 24RD
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![Rockwell 24RD II Rockwell 24RD II](../assets/images/Rockwell24RDII_1_tlr.jpg)
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Rockwell 24RD II.
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![Rockwell 30R Rockwell 30R](../assets/images/Rockwell30R_1_tlr.jpg)
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Rockwell 30R.
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![Rockwell 31R Rockwell 31R](../assets/images/Rockwell31R_1_tlr.jpg)
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Rockwell 31R.
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![Rockwell 44RD Rockwell 44RD](../assets/images/Rockwell44RD_1_tlr.jpg)
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Rockwell 44RD.
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![Rockwell 51R Rockwell 51R](../assets/images/Rockwell51R_1_tlr.jpg)
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Rockwell 51R "Converter"
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![Rockwell 61R Rockwell 61R](../assets/images/Rockwell61R_1_tlr.jpg)
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Rockwell 61R.
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![Rockwell 63R Rockwell 63R](../assets/images/Rockwell63R_1_tlr.jpg)
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Rockwell 63R.
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![Rockwell ‘76 Rockwell ‘76](../assets/images/autogen/Rockwell76_1_tlr.jpg)
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Rockwell '76 (calculator made to celebrate USA bicentennial in 1976).
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![Rockwell 202 Slide Rule Rockwell 202 Slide Rule](../assets/images/Rockwell202_1_tlr.jpg)
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Rockwell 202 Slide Rule.
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Royal (Originated as the Royal Typewriter Company, U.S.A, later one of the Litton Industries companies which included Imperial, Triumph and Adler)
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![Royal 80K Royal 80K](../assets/images/Royal80K_3_tlr.jpg)
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Royal 80K, very small but chunky calculator.
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![Royal 81M Royal 81M](../assets/images/Royal81M_1_tlr.jpg)
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Royal 81M, very small but chunky calculator.
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![Royal 81SN Royal 81SN](../assets/images/autogen/Royal81SN_1_tlr.jpg)
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Royal 81SN. Details.
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![Royal 90S Royal 90S](../assets/images/Royal90S_1_tlr.jpg)
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Royal 90S.
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![Royal Award GT8 Royal Award GT8](../assets/images/RoyalAwardGT8_1_tlr.jpg)
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Royal Award GT8.
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![Royal Countess Royal Royal Countess Royal](../assets/images/RoyalCountess_1_tlr.jpg)
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Royal Countess Royal.
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![Royal Digital III Royal Digital III](../assets/images/RoyalDigitalIII_1_tlr.jpg)
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Royal Digital III, inside 1, inside 2, highly unusual 4-digit tube display, operated using a stylus. Featured calculator
.
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![Royal Digital IV Royal Digital IV](../assets/images/RoyalDigitalIV_1_tlr.jpg)
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Royal Digital IV, inside1, inside2, 8-digit LED version of the Digital III. Featured calculator.
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![Royal Digital V Royal Digital V](../assets/images/RoyalV_1_tlr.jpg)
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Royal Digital V.
Featured on British calculator site.
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![Royal Digital 5-M Royal Digital 5-M](../assets/images/RoyalDigital5M_1_tlr.jpg)
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Royal Digital 5-M (Appears to be the same as the Royal Award GT8). Featured on British calculator site.
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![Royal Digital 5-T Royal Digital 5-T](../assets/images/RoyalDigital5T_1_tlr.jpg)
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Royal Digital 5-T. Featured on British calculator site.
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![Royal Digital 88M Royal Digital 88M](../assets/images/autogen/RoyalDigital88M_1_tlr.jpg)
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Royal Digital 88M.
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![Royal Five GT Royal Five GT](../assets/images/RoyalFiveGT_1_tlr.jpg)
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Royal Five GT.
Featured on British calculator site.
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![Royal Mini Five Royal Mini Five](../assets/images/RoyalMiniFive_1_tlr.jpg)
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Royal Mini Five. Featured on British calculator site.
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![Royal RC-80 Royal RC-80](../assets/images/RoyalRC80_1_tlr.jpg)
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Royal RC-80. Details.
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![Royal RC-84 Royal RC-84](../assets/images/RoyalRC84_1_tlr.jpg)
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Royal RC-84. Details.
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![Royal RC-87 Royal RC-87](../assets/images/RoyalRC87_1_tlr.jpg)
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Royal RC-87. Details.
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Ruby (NEC (Nippon Electric Company), Japan. Any connection with the Ruby calculators from Sola Enterprise, below, is not known.)
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![RubyHM80D_1_tlr RubyHM80D_1_tlr](../assets/images/autogen/RubyHM80D_1_tlr.jpg)
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Ruby HM-80D, rear. Details.
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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.)
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![Ruby 800 Ruby 800](../assets/images/AdvanceRuby800_1_tlr.jpg)
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Ruby 800, inside, this example labelled "Advance Electronics Co., Ltd.". Details.
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![Ruby 800M Ruby 800M](../assets/images/Ruby800M_1_tlr.jpg)
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Ruby 800M, this example marketed by Sola Enterprise Co., Ltd. Details.
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![Ruby Super Mini 800M Ruby Super Mini 800M](../assets/images/autogen/RubySuperMini800M_1_tlr.jpg)
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Ruby Super Mini 800, this example labelled "Advance Electronics Co., Ltd.". Details.
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Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2024.