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HP-71B Handheld Computer/Calculator  WITH Finance & Text Editor Modules  Original Pouch & Guide
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HP-71B Handheld Computer/Calculator – WITH Finance & Text Editor Modules – Original Pouch & Guide

Secondhand 1 was available
R8,500.00
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R35.00 Standard shipping using one of our trusted couriers applies to most areas in South Africa. Some areas may attract a R30.00 surcharge. This will be calculated at checkout if applicable.
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The seller allows collection for this item. Buyers will receive the collection address and time once the order is ready.
The seller has indicated that they will usually have this item ready to ship within 5 business days. Shipping time depends on your delivery address. The most accurate delivery time will be calculated at checkout, but in general, the following shipping times apply:
 
Standard Delivery
Main centres:  1-3 business days
Regional areas: 3-4 business days
Remote areas: 3-5 business days
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Product details

Condition
Secondhand
Location
South Africa
Type
Scientific
Customer ratings
Product code
HP71B
Bob Shop ID
680291803

Condition:
Used fully operational (tested) includes original accessories

Description:

For sale is a genuine Hewlett-Packard HP-71B handheld computer/calculator from the mid-1980s. This is the complete package that collectors are looking for.

Included in this listing:

  • Seen in the photo

What's NOT included:

    • No original box
    • No AC adapter (operates on 4x AAA batteries)

    Technical Specifications:

      • Processor: HP Saturn (first HP calculator to use this chip) 
      • Display: 22-character single-line LCD
      • Memory: 64KB ROM, 17.5KB user RAM
      • Programming: BASIC with real-time clock and programmable timers 
      • Expansion: Four plug-in ports (two populated with your modules)

      Why this is special:
      The HP-71B was HP's first handheld Saturn-based computer and the forerunner to the HP-48 series. HP famously published the complete internal design specifications and source code for this model . It remains highly collectible among vintage computing enthusiasts.

      Condition notes:

        • Calculator powers on and functions
        • Display is clear with no dead lines
        • Keypad responds well
        • Cosmetic wear consistent with age (see photos)
        • Modules insert and are recognized by the calculator

        Returns: Sold as described no returns.

        Customer ratings: 1 ratings

        Braam has been very helpful. Fast dispatch was just one aspect of his support. greatly appreciated and highly recommended as a seller.
        14 Jun 2026
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