British Calculators

Home > British Calculators

Gemini

The manufacturer of Gemini calculators is a little puzzling. Some of the calculators are marked as made by Emihus Microcomponents Limited and others by Newlyn Electronics, Voundervour Lane, Penzance, Corwall.

Emihus Microcomponents Ltd. was jointly owned by EMI (Electrical and Musical Industries) of the UK and Hughes Aircraft of the U.S.A., and based at Clive House, 12-18 Queen's Road, Weybridge, Surrey. Emihus was a manufacturer of LSI (Large-Scale Integration) calculator integrated circuits.

"The Times" newspaper, of February 15th 1974, reported that earlier that month Emihus had announced its first calculator model, the Gemini I, previously exclusively manufactured for Hanimex. It uses a Rockwell-designed microcircuit manufactured under license at the Emihus factory in Glenrothes, Scotland. The Hanimex BC808 is shown at the bottom of this page for comparison.

Newlyn Electronics manufactured control equipment, and in the mid-1970s it also produced several models of Gemini calculator, before going into liquidation in 1976. It may be that Newlyn Electronics was a sub-contractor of Emihus and also a distributor of the calculators.

Known Gemini models:

Gemini 1

Gemini 1

Gemini 1

Display is 8 Digits, red LED.

4 functions, %.

4.5v (3x N batteries).

70 x 122 x 25 mm / 2.8 x 4.8 x 1.0".

Made in U.K. by Emihus Microcomponents Limited.

Price of £32.50 in February 1974.

Label

The label on the rear, showing manufacture by Emihus Microcomponents Limited.

Gemini 1B

Gemini 1B

Gemini 1B

Display is 8 Digits, red LED.

4 functions, %.

4.5v (3x N batteries).

70 x 122 x 25 mm / 2.8 x 4.8 x 1.0".

Made in U.K. by Newlyn Electronics Limited.

Label

The label on the rear, showing manufacture by Newlyn Electronics Limited.

Gemini 2

Gemini 2

Gemini 2

Display is 8 Digits, red LED.

4 functions, %, memory.

4.5v (3x N batteries).

70 x 122 x 25 mm / 2.8 x 4.8 x 1.0".

Made in U.K. by Newlyn Electronics Ltd., Penzance, Cornwall.

Price was £11.25 in 1975 (see advertisement for Gemini 3, below.

Gemini 3

Gemini3_11

Gemini 3

Scientific calculator.

70 x 122 x 25 mm / 2.8 x 4.8 x 1.0".

Made in U.K. by Newlyn Electronics Ltd., Penzance, Cornwall.

Advertised in 1975, cost £22.63 including tax.

Gemini 3

1975 advertisement for the Gemini 3. Other models in the Gemini range include the Gemini 1B with 5 functions & auto constant, priced at £9.95, and the Gemini 2 with memory, priced at £11.25.

The close resemblence between the Gemini models, made by Newlyn Electronics, and the Hanimex BC808, made by Emihus, can be seen below.
If you have any information about a link between the two companies please get in touch.

Hanimex BC808

Hanimex BC 808

Hanimex BC808

4.5v (3x N batteries).

Display is 8 digits, red LED.

4 function, %.

73 x 148 x 23 mm (2.9" x 5.8" x 0.9").

"Made in U.K. by Emihus Microcomponents Limited, for Hanimex Corporation."

Label

The label on the rear, showing manufacture by Emihus Microcomponents Limited for Hanimex Corporation.

Vintage Calculators

© Text & photographs copyright Nigel Tout   2000-2017  except where noted otherwise.