Lloyd's Accumatic 310

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Calculators: Handheld: Lloyd's Accumatic (aka E310)

		Size (approx):	85mm (max) x 136mm x 27mm (max) (w,h,d) Weight 148g excluding batteries
		Power:	6V DC, 4 x AA size battery, 300mW. Also accepts adapter (YA-7247, 120V 60Hz or YA-7585, 220V 50Hz, ^V DC centre positive) through top side socket on the right. Adapter can be used as a charger - but remove alkaline batteries when adapter in use.
		Case:	Solid smooth beige plastic case with rounded edges. The blue/grey display filter is quite angled and has printed white text for the brand and model name. The keyboard surround is dark brown matt plastic with white printed text for the on/off switch label. The top and bottom panels are the same dark brown plastic. Keys are soft with a soft click but work well.
		Display:	8 digit blue VFD with a ninth digit for negative and error indication
		Features:	Standard four function with percentages, change sign and four-function memory
		Age:	1976
		Manufacturer:	Made in Japan. Serial number 7D-172563, Series 255B
		Comments:	Lloytron was a brand name used by Lloyd's in the UK and France (and maybe the rest of Europe) so I suspect this is an American calculator. The original black leatherette case had a flap and tuck top cover, but would not accommodate the manual.

Components:	1 x CPU: Mitsubishi M58618-83P 582C, 24 pin DIL, 0.6" width black plastic 1 x 9 digit VFD: single tube round face: Futaba 9-CT-08 6B (February 1976) 2 x transistors 3 x diodes (?) 4 x capacitors 4 x resistors 1 x resistor arrays 1 x transformer
Boards:	The keyboard assembly (E310 58618 K-1 GK177-7.8.11) (50424)rest loosely on top of the battery compartment and half covers the main board (M81-C83). 13 strong wires connect the two boards which are not fixed to the case.
Construction:	Held together by internal lugs only. There is a small lever slot at the bottom end of the battery compartment that allows you to prize apart the rear section. I only found this useful after you have popped the lugs on one of the sides. You can do this by gently pushing in the rear section and levering open with a soft implement. Hinge the front off from the top. Quite difficult so be careful not to damage your calculator. Very similar to the Decimo Vatman series.