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Calculators: Handheld: Prinztronic 8000 (Dixons)
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Size (approx): | 74mm x 135mm x 24mm (max) (w,h,d) Weight 96g excluding batteries |
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Power: |
3V DC, 2 x AA size batteries. Does not accept an adapter although the case does have a marked area for a hole to be punched out. There is a foam mounted label showing the battery orientation in the compartment. The on/off switch is on the right hand side in line with the display. | ||
| Case: | Two-piece light beige and black plastic case with a slight wedge shape. The top front is covered by a recess brushed aluminium panel printed black with the brand and model names. A raised and shaped green plastic display filter has its own light grey plastic escutcheon. Below this another recessed aluminium panel acts as the keyboard surround and is printed black and blue for the labels and design. The keys are short travel with a positive plastci-sounding click. | ||
| Display: | 8 digit green VFD with a ninth digit on the far left used for negative, memory and error indication | ||
| Features: | Standard four functions, with square roots, percentages, reciprocal, pi and five function memory. | ||
| Age: | 1978 | ||
| Manufacturer: | Made in Hong Kong. Serial No. A291925. | ||
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Comments:
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Quite similar to the earlier Texet 880 and other models. The logic is very good with no bugs and only let down by negative square roots. Accompanying instructions are plain black text on a four page 132mm x 65mm booklet - very cheap. The original cover is soft black plastic with an open top. |
| Components: | 1 x cpu: Texas TMS1044NL 7814 (date code week
14 of 1978), 28 pin DIL 0.4" width black plastic 1 x 9 digit VFD unit: single glass tube flat face LD8161 2 x transistors 5 x diodes 4 x capacitors 11 x resistors 1 x transformer |
| Boards: | The main cpu board (1D35 2000 1944 Rev 2 040177) sits lose and face down over the keyboard assembly, the two are joined by 13-way paper covered ribbon cable. |
| Construction: | Difficult to open as it is held together by internal lugs only. Be careful as the case is quite thing and damage can easily result. I found the best way was to start at the top edge, levering out the rear section to pop the lugs, The back will eventually lift off. |
| Logic comments: | (CE/C) is used once to cancel the last number entered a second time to clear the whole calculator. |
| There is automatic constant on all four functions. | |
| Input overflow is suppressed, keying a ninth digit is ignored | |
| Negative numbers are shown with a "-" sign in the far left (ninth) digit thereby allowing full eight digit negative numbers. | |
| Overflow shows the result and "C" (or "E" if negative) in the far left (ninth) digit and is recoverable using (CE) | |
| Divide by zero shows zero and "C" in the far left (ninth) digit and is recoverable using (CE) | |
| Negative square roots are allowed and result in a negative number | |
| Memory storage is flagged by an "n" if the upper section of the far left (ninth) digit | |
| Overflow in memory is flagged, is recoverable and stores the result shifted | |
| No bugs found |
