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.
Karstadt
Karstadt MR40, Karstadt MR40 compared with Teal 813
Keltmace
Keon ("London, Hong Kong, Melbourne")
Keon KE-003A, photo 2, has very large buttons, and no On/Off switch - press "C" to power on, then powers off automatically if no button pressed for some time. Details . There is a short article about this calculator on this site.
Kessel (Kessel Electronics (HK) Ltd., of Hong Kong, is a company of the Kessel Group)
Kessel [CBM] 786D (Commodore 786D with Kessel label). Details.
Keystone (see also Atlas-Rand and Berkey)
Keystone 88, has amber gas-discharge display. Featured calculator.
Keystone 390, has amber gas-discharge display, inside.
Kiankho
Kiddy Computer
Kiddy Computer, calculator teaching game.
Kings Point 8410 "Micro Universal", inside. Details.
Kings Point 8412 "Micro Memory".
Kings Point 8414 "Micro Executive". Details.
Kings Point FN-85 "Financial Computer".
Kings Point KP-9, SC-44F, EC-841
King Sonic
King Sonic (model number unknown, "Standard type 1" calculator). Featured calculator.
Kit Calculators
Calculator made from a Kit, circa 1972
Kitlex
Konkret (Made by RFT, East German (DDR) company - see also RFT)
RFT konkret 100 and konkret 200 models
RFT konkret 400 and Elektronika b3-19M
Kores (International office supply company based in Vienna, Austria)
Kores Novus 821 (rebadged National Semiconductor Novus 821). Details.
Kosmos
Kosmos I, biorhythm calculator. Featured calculator.
Kosmos Astro, calculator and astrological predictions. Featured calculator.
KOVAC (KOVAC CORPORATION, Osaka, Japan)
KOVAC 809ESR, has unusual sliding cover over keyboard, inside. Details.
KOVAC K-82DP, inside. Details.
KOVAC LE-802, has unusually large LED display, inside. There is also a version with a "D" key (for refreshing the display). Details.
KOVAC pocket mini P-80. Details.
KOVAC Pocket memory P-81. Details.
KOVAC P-82 "SCIENTIFIC FRIEND". Details.
KOVAC SM-818M, inside. Details.
KOVAC SM-858M, rear. Details. Mar 25.
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