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Calculators: Handheld: Decimo Vatman (Type II)
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Size (approx): |
83mm
(max) x 132mm x 30mm (max) (w,h,d) |
| Power: | 6.0V DC, 4 x AA size batteries, 0.45W. Also accepts adapter/charger (undefined) through a top side socket on the right. | |
| Case: | Chunky two piece plastic case. Bottom is beige, top is matt black. Green display filter has painted logo. Decimo logo is metal inset panel. Keyboard surround is brushed aluminium. Top is slightly tilted upwards, including the back which causes the calculator to rock, especially with no batteries to weigh it down. | |
| Display: | 8 digit green VFD display - ninth used for minus and error signs. | |
| Features: | Basic four function with percentages, square root. | |
| Age: | 197? Originally sold for £8.55 in Woolworth's. | |
| Manufacturer: | Decimo Electronic Handy Calculator. Made in Japan. Serial No. 107355 | |
| Comments: | Classic calculator which has a quality feel in the hand. Logic sound. Imbalance on the desk let it down. Original black plastic case is open topped. For those non-UK viewers, VAT stands for Value Added Tax - the purchase tax system in the UK. |
| Components: | |
| Boards: | |
| Construction: |
| 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 |
| Overflow on the input of a number is suppressed | |
| The constant function is automatic on all four operations | |
| The negative sign is shown on the immediate left digit pushing into the ninth to allow 8-digit negative numbers | |
| Negative square roots result in "E" in the ninth digit and is not recoverable but the number is shown | |
| A divide by zero or overflow error is shown by an "C" in the ninth digit. Neither is recoverable. |
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This box is a
sleeve which goes over a "C" shaped card former. It still
has the original Woolworth's £8.55 price sticker. Measures 140mm x
93mm x 38mm. Printed in Japan.
There is an additional printed warning on the back - remove dry cells if mains adaptor used. |
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Very basic blue, black and grey manual.
Measures 120mm x 80mm and is 6pp fanfold.
One example has the text "Lough estimate" ! There is also an orange and black guarantee and registration card. |
