Omron 86/86M/86SR

Serial number 1171255, inside battery compartment
Accessories None
Condition Good.
Repairs, Comments
Acquired 10.10.2004

Serial number 7011463K
Condition Cosmetically very nice. The battery compartment lid is a bit banged up from prying it open. The display has been mounted in a slight angel. On the back a few scratches on the instruction sticker.
Some keys have a bit of a contact problem, especially the "2" key.
Repairs, Comments
Acquired 9.11.2003
Serial number 0213132N, inside battery compartment
Accessories Manual: Omron 86SR Bedienungsanleitung (German, 31 pages)
Power supply, 220V
Condition Quite good, some scratches on the back
Repairs, Comments
Acquired 10.1.2006
Type, Precision, Input mode 86/86M: Simple, 8 BCD digits, no exponent, Algebraic
86SR: Scientific, 5/8 BCD digits, exponent 99, Algebraic
Programmable No
Memory 1 summation register, not permanent
Display Omron 86: 8 digit 7 segment green "Minitron" tube
Omron 86M/86SR: 9 digit 7 segment green "Minitron" tube
Special features Instructions on the back.
86M: auto-summing memory
Original Pricing, Production Made by Omron Tateisi Electronigs, Japan
Batteries 2x AA or off-the-self DC 3V power supply, minus on center
Dimensions 86/86SR: Length 13.4cm, Width 7.7cm, Height 2.4cm
86M: Length 15cm, Width 7.7cm, Height 2.4cm
Links 86M-Manual (PDF, 9 pages, English)
Vintage Electronic Calculator Manuals.
Comment The Omron 86 is the unit that was sold as the first Braun calculator 4954.
The "N-S" key of the 86SR changes between fix-point and exponential display mode. In exponential mode only 5 mantissa digits are displayed.
A detailled description of display tubes can be found Volker Niepel's pages.
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