Sinclair Oxford 200
Type 1
Type 2
Sinclair Oxford 200 (probably early style)
Display is 8 digits, red LED.
4-function, %, memory.
9v (PP3 battery).
73 x 155 x 34 mm (2.9 x 6.1 x 1.3 ins).
Made in England.
Type 1, sharp corner casing.
Price, April 1975[1] GBP £21.55 (about US$48).
Sinclair Oxford 200 (probably late style)
Display is 8 digits, green VFD (Vacuum Fluorescent Display).
4-function, %, memory.
9v (PP3 battery).
73 x 155 x 34 mm (2.9 x 6.1 x 1.3 ins).
Made in England.
Type 2, rounded corner casing.
The circuit board of the type 2 Sinclair Oxford 200. The white and blue block is a voltage converter to provide the high voltage for the vacuum fluorescent display.
Sinclair's Oxford range of calculators was launched in Spring 1975[1].
Initially, the models in this this range had a sharp cornered casing and an LED display, which has been designated Oxford case type 1 on this site.
Later calculators in the Oxford range had a more stylish, more rounded casing, coupled with a green VFD display. This has been designated Oxford casing type 2 on this site and can be seen here and on the other Oxford pages.
Reference:
Sinclair models
Vintage Calculators
© Text & photographs copyright Nigel Tout 2000-2019 except where noted otherwise.