1976 SINCLAIR SOVEREIGN SATIN CHROME STEEL LED CALCULATOR WORKING

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SINCLAIR SOVEREIGN SATIN CHROME FINISH WITH ORIGINAL BOX, POUCH AND OPERATING INSTRUCTION MANUAL, STILL WITH SERVICE/GUARANTEE .IN FULL WORKING ORDER WITH 2 NEW BATTERIES (PX 625A INCLUDED).CALCULATOR IS IN GREAT CONDITION, DON`T THINK IT HAS EVER BEEN USED. SLIGHT BATTERY TERMINAL CORROSTION( SEE PHOTO) IT HAS BEEN DEALT WITH AND IS NO PROBLEM. BOX AND POUCH AND MANUAL A LITTLE DUSTY, BUT IN OTHERWISE GOOD CONDITION. The Sovereign was a high-end calculator introduced by Sinclair Research Ltd of the UnitedKingdom in 1976, it was one of the last Sinclair calculators. The Sovereign came in silver and gold plated models, The display can view 8 digits using red light-emitting diodes (LEDs), and includes four functions for percentage, memory, square root and square. It uses two 2.5 volt button cells and uses a Mostek MK50321N main integrated circuit (IC). Similar to other Sinclair products and calculators, the Sovereign was small and slim measuring 36 x 141 x 12 mm (1.4 x 5.6 x 0.5 inches). The Sovereign was unusual because the casing was made from pressed steel . This allowed a variety of paint and plating options, including black painted, bright chrome plated , silver plated, and gold plated. A small number of solid gold ones were made. In 1976, the chrome plated version cost GB£30 (US$60) and the gold plated version cost twice as read more

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