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Electronic Pocket Calculator HP-35

Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313862) Equipment
Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313852) Equipment Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313854) Equipment
Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313856) Equipment Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313857) Equipment
Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313858) Equipment Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313859) Equipment
Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313860) Equipment Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313861) Equipment
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Electronic Pocket Calculator HP-35; Hewlett-Packard, HP; (ID = 2313852) Equipment
Hewlett-Packard, HP;: Electronic Pocket Calculator HP-35 [Equipment] ID = 2313852 1400x1050
Select picture or schematic to display from thumbnails on the right and click for download.
For model Electronic Pocket Calculator HP-35, Hewlett-Packard, (HP); Palo Alto, CA
 
Country:  United States of America (USA)
Manufacturer / Brand:  Hewlett-Packard, (HP); Palo Alto, CA
Year: 1972–1975 Category: Service- or Lab Equipment
Wave bands - without
Details
Power type and voltage Batteries / addl. power jack / 3 x 1.2 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Electronic Pocket Calculator HP-35 - Hewlett-Packard, HP; Palo Alto
Material Plastics (no bakelite or catalin)
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Dimensions (WHD) 81 x 35 x 150 mm / 3.2 x 1.4 x 5.9 inch
Notes

The HP-35 was the world's first scientific pocket calculator, and the first to use Reverse Polish Notation, which obviates the need for parentheses by placing the operators after the operands. RPN is very efficient for evaluating mathematical expressions. It has a 15-digit LED display and offers 10-digit accuracy (depending on the function).

Powered by 3 AA-size NiCd rechargeable batteries, or directly by its adapter from AC mains.

Early production versions of the calculator were labelled only "Hewlett Packard", whereas later models carried the label "Hewlett Packard 35" on the faceplate. The number refers to the fact that the calculator has 35 keys. Two bugs were discovered after 25,000 calculators had been sold, but fewer than 25% of the faulty units were returned for the free replacement that was offered by HP. These early calculators are now worth more to collectors.

The HP-35 was so rugged that it is said that sales people dropped it intentionally for demonstration purposes. The calculator revolutionised the engineering profession by obsoleting the slide rule, and HP sold over 300,000 before it was discontinued in 1975. In 2009, HP received an IEEE Milestone award for the HP-35.

Net weight (2.2 lb = 1 kg) 0.260 kg / 0 lb 9.2 oz (0.573 lb)
Price in first year of sale 395.00 USD

Model page created by Bruce Taylor. See "Data change" for further contributors.



All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA
Here you find 355 models, 322 with images and 124 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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