| Serial Number | 665581E |
| Accessories | Plastic pouch |
| Condition | Mint |
| Acquired | 16.6.2002 |
| Accessory |
Manual: Omron 12SR
Instruction Manual, Bedienungsanleitung Bound printout of the PDS mentioned below. |
| |
|
| Type, Precision, Input Mode | Scientific, 12 BCD digits, exponent ±99, Reverse Polish Notation |
| Programmable | No |
| Memory | Registers 0-9 where register 0 is also used for
Last-X,
not permanent. 4-level stack with regular Helett-Packard behaviour. |
| Display | - |
| Special features | Uses RPN. Hyperbolic trigonometric functions, unit conversions. |
| Original Pricing, Production | Unknown, approx. 1977, by Omron Tateisi Electronics Co., Kyoto, Omron Europe GmbH, Hamburg, Omron Corp. of America, Chicago |
| Batteries | 3x AA or external power supply |
| Dimensions | Length 16.2cm, Width 8.5cm, Height 3.5cm |
| Links | Quick
Reference
(Word) Manual (PDF, 50 pages, English/German) Vintage Electronic Calculator Manuals. |
| Comment | One of the few non-HP calculators that uses RPN!
It looks
quite simple but provides a surprisingly wide range of functions thru
combinations
of the "F", "inv" and "hyp" keys. The design is clunky and it is really slow, calculating 2 to the power of 3 takes about 3.5 seconds! Apparently the most complex unit that Omron ever made. This was the first real scientific calculator that it I owned. I always wanted to have a RPN unit and this one I could afford. There was a similar unit SR10. |
| Back To Contents |