Hewlett-Packard HP-80

Serial number 1247S12062: 1972, 47th week, Singapore
Accessories Pouch

Power supply

Manual: HP-80 Bedienungs-Handbuch (German), bound printout from the MoHPC CD-ROM
Condition Absolutely excellent! Not even the silver lining shows any kind of wear. Instructions on the back in German.
Repairs, Comment
Acquired 17.3.2003

Serial number 1507S06128: 1975, 7th week, Singapore
Accessories Pouch

Manual: HP-80 Bedienungs-Handbuch (German, 94 pages, dated Dec 1973)

Quick Reference: HP-80 Kurzanleitung (German, 21 pages, dated April 1974)

Power supply, 220V AC

Plastic box
Condition Absolutely excellent! Only a few small scratches in the keyboard area. Silver lining ok. On the top edge a somewhat loose sticker labelled "Property of". On the back a sticker of the "Gesamthochschule-Siegen" with "Inv.-Nr.: 120.0116/4" and other unreadable information. The sticker is in a bad shape.
Instructions on the back in German.
Repairs, Comment
Acquired 9.7.2004

HP codename, series None, Classic
Type, Precision, Input mode Financial, 10 BCD digits, exponent 99, Reverse Polish Notation
Programmable No
Memory 1 storage register, not permanent
Display 15 digit 7 segment red LED, 1 digit used for sign, three for exponent and sign
Special features Different from other HP calculators the Enter key is labelled "SAVE".
On the back a sticker with instructions.
Original Pricing, Production 1.2.1973 ($395) - 1.10.1978 ($295)
Batteries Accu pack with 3x AA cells or external power supply with special connector
Dimensions Length 15.1cm, Width 8cm, Height 3.6cm
Links HP-80 Owner's Manual (English), PDF, dated 4/1973
HP-80 Bedienungs-Handbuch (German), PDF, dated 8/1974
HP-80 Kurzanleitung (German), PDF, dated 4/1974
For a brief explanation of the financial functions see HP's second financial calculatr, the HP-70.
Comment HP's second calculator and the first business/financial model.
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