Rare VTG Hewlett-Packard HP 27 Handheld Scientific Calculator Owner's Handbook

This includes all the instructions on how to use the calculator. Discolored strip on right side is likely from a label. We have not cleaned any part of this calculator. We wanted to leave that to an expert.

This includes all the instructions on how to use the calculator. Discolored strip on right side is likely from a label. We have not cleaned any part

Rare VTG Hewlett-Packard HP 27 Handheld Scientific Calculator Owner’s Handbook

HP Calculator, PDF, Calculator

Vintage Citizen LCD Calculator Alarm Clock and 50 similar items

Recent find: $36 Sharp EL-5500 III. BASIC and machine code programmable with cassette and TTL serial I/O via 11-pin female header : r/vintagecomputing

HP 15C Programmable Scientific Calculator Owners Handbook Box Hewlett Packard US

A time-tested performer, the HP 12c has an easy-to-use layout, one-line LCD display and efficient RPN data entry. Easily calculate loan payments, interest rates and conversions, standard deviation, percent, TVM, NPV, IRR, cash flows, bonds and more. Over 120 built in functions.