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Calculators: Handheld: Elite S 2001

Size (approx):

83mm (max) x 132mm x 30mm (max)  (w,h,d)
Weight 136g excluding batteries.
Power: 6.0V DC, 4 x AA size batteries.  Also accepts adapter/charger (undefined) through a top side socket on the right.  The on/off switch is located on the top side, in the middle and is a three-position on/off/charge.  A note on the back warns do not switch to charge with standard batteries in place (in German).
Case: Chunky two piece plastic case.  Bottom is light grey, top is matt black.  Green display filter is flush with the case.  The Elite logo and model number is on a printed metal inset panel.  The green plastic display filter gives a clean bright image.  Keyboard surround is brushed aluminium.  The top is slightly tilted upwards, including the back, which causes the calculator to rock, especially with no batteries to weigh it down.  The keys are short travel with a soft click and work well enough.
Display: 8 digit green VFD display – with a ninth used for minus and error indication
Features: Basic four function with percentages, square root, pi and change sign
Age: 1976
Manufacturer: Elite, no other information but back panel's in German.  Code number 9025, serial No. 12 06108.
Comments: Classic calculator which has a quality feel in the hand. The logic is not too bad and only let down by lack of recover and negative square roots. Imbalance on the desk let it down.  Original black plastic case has top cover which fastens with a popper on the front. It has the Elite logo embossed on the front. Looks exactly the same as the Decimo Vatman.

Components: 1 x cpu: Hitachi HD 37330 6A41 (January 1976), 28 pin DIL, 0.6" width black plastic
1 x 9 digit single round faced VFD display
2 x transistors
5 x diodes
6 x capacitors
5 x resistors
1 x transformer: DCT-03 Zebra
Boards: The keyboard assembly (ref: GK161-17.1 HD373330 GICO Japan) sits on top of the main cpu board  and is fixed to it by 12-way ribbon cable.
Construction: Gently prize the front off by using the coin slot at the top.  Be careful, you can easily damage your calculator - if in doubt don't try it.

Logic comments: The Clear Entry key (CE) is used to clear an input number; the clear (C) key is used to completely reset the calculator
Input overflow is not suppressed: keying in a ninth digit causes an overflow which is recoverable using (CE)
There is automatic constant on all four functions
The negative sign is shown in the immediate left hand digit travelling into the far left (ninth digit) thereby allowing full eight digit negative numbers
An overflow is shown with the result and a “C” (“E” if negative) in the far left (ninth) digit and is not recoverable
A divide by zero shows zero and "E" in the far left (ninth) digit and is not recoverable.
The change sign function can be used in mid number entry but not before
Negative square roots are allowed and result in a negative number
No other bugs found

With the front removed you can see the familiar design of the Decimo-type series: GICO keyboard on top of the battery compartment and half obscuring the main cpu board.

You can see the main IC above the keyboard edge.