MITS 908M

Display is 8 digits, red LED.

4-functions, %, square, square root.

7.2v (6x AA) rechargeable.

Main integrated circuit - MOS MCS2523 (in this example date coded mid-1973).

83 x 149 x 40 mm (3.3" x 5.9" x 1.6").

c1973.

Made by Micro Instrumentation & Telemetry Systems, Inc., Albuquerque, New Mexico.

1973 price - $129.95 assembled or $99.95 as a kit.



Shown with instruction manual and home made leather case. Note the large thickness of the calculator (40 mm/1.6") since most of the rear accomodates 6 rechargeable cells.


	The 6 rechargeable cells in the rear of the calculator.


		The circuit board, with the MOS MCS2523 integrated circuit on the right.

MITS (Micro Instrumentation & Telemetry Systems, Inc.) is famous as the company which in 1975 introduced the Altair 8800. This was the first mass-marketed home computer, used an Intel 8080 processor, and was the originator of the standard S-100 bus. MITS produced a small range of calculators, which could be purchased ready assembled or as a self-assembly kit. There were several other companies supplying calculator kits, including Heathkit and Sinclair, which gave some cost saving and also the satisfaction of having assembled the calculator oneself.

Hand-held Calculators


		*Vintage Calculators*

	© Text & photographs copyright Nigel Tout 2000-2007 except where noted otherwise.