Omron 86/86M/86SR

Serial number	7011463K
Accessories
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.