Hewlett Packard HP-45 scientific calculator texas instrument TI sharp casio

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Seller: 2009forgottentreasures ✉️ (542) 0%, Location: Hollidaysburg, Pennsylvania, US, Ships to: US & many other countries, Item: 262764882686 Hewlett Packard HP-45 scientific calculator texas instrument TI sharp casio. Up for consideration is a working HP-45 calculator and accessories. The HP-45 calculators and accessories were produced from 1973 until 1976. These items are in amazing condition for being 40-43 years old. The pictures are of the exact item you will receive if you win this auction. See the detailed condition below and the pictures, email me if you have any questions. Please keep in mind the item does work; however, being 40-43 years old (just like humans), parts can wear out at any time.

The HP-45 was HP’s second scientific handheld electronic calculator. It added many features, including numbered data registers, store and recall register arithmetic, built-in conversion constants and selection of trigonometric modes. The HP-45 was HP's first scientific calculator to have a shift key. This was such a novel feature at the time that HP credited the key with nearly doubling the computational power of the calculator. The HP-45 added the ability to do trig functions in Radians or Grads, polar to rectangular conversions, decimal degrees to/from degrees minutes seconds, basic statistics %, % change, n! etc. It was also the first pocket calculator, to have 9 storage registers in addition to the 4 level stack. The HP-45 also added 10^x and replaced x^y with y^x. It also added the now ubiquitous Last X key and x^2. The latter was placed on an unshifted key where it makes sense. (So it actually takes one less keystroke to do x^2 than Enter, multiply.) Another feature added on the HP-45, was the formatted display. It added both fixed and scientific displays with a choice of the number of digits displayed.

The HP-45 had code to implement a timer. This was never exposed as a user feature because the lack of a quartz crystal in the HP-45 made the timer fairly inaccurate. The timer could be invoked by pressing RCL and then pressing CHS 7 8 all at the same time. Once in timer mode, CHS toggled it between running and stopped. Pressing 1-9 stored the current time in that register when the timer was running or recalled the stored time when the timer was stopped. Pressing the decimal point key, brought the calculator back to normal mode with the time still in the display. (Pressing Enter also resumed normal mode but cleared the display.)

HP-45 CALCULATOR & ACCESSORIES DETAILED CONDITION:

        HP-45 CALCULATOR

    • keyboard buttons are in amazing condition and work flawlessly
    • light to moderate wear on calculator body
      • silver trim has wear
      • calculator body is dirty and needs cleaned
    • red screen is free of major scratches 
      • a few light scuffs do exist
    • all led segments nice and bright
    •   battery door has damage to one of the locks
      • battery door inside sticker has damage
      • battery pack needs replaced
    • battery compartment contacts are in very good condition
    • calculator ac power contacts are in amazing condition
    • rear instruction label is in amazing condition
    • still has all four rubber feet
    • tested and works
    • serial number: 1503A11485
  • Hard Case
    • great condition
      • some dirt, stains, and storage dings
      • foam has impression of calculator and adapter 
    • case locks closed like it should
  • Leather Case ($45 value purchased separately)
    • amazing condition
    • zipper works flawlessly
  • DC Adapter/Charger  ($55 value purchased separately) 
    • amazing condition
    • NO CUTS in cord
    • cord fits into calculator connection perfectly and has NO wiggle room
    • tested and works
Check out my other items ! Please email me with any questions you may have prior to auction end. Payment must be made within 3 days of auction end unless you have made prior arrangements with me first. Non-paying bidders will be reported to ebay. Detailed feedback will be left AFTER feedback is left for me.   According to ebay assess system, 5 stars doesn't mean perfect but an average-above seller and 5 stars is a MUST request for any ebay sellers, which means a lot for our future ebay undertakings. If you are considering giving us a neutral or negative feedback or a low DSR (1~4), or raising any disputes to Paypal, please kindly do contact us first and give us an opportunity to address your concerns first. Thank you for considering my item, and I hope you have a great day!!
  • Condition: Please see detailed condition in the listing!! Keep in mind these items are 40-43 years old and like humans parts wear out at any time.
  • Brand: Hewlett Packard
  • Model: HP-45
  • Type: Scientific
  • Power Source: AC/DC Cord

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