Hewlett Packard HP 28S Advanced Scientific Calculator with Original Case Vintage
HP
125.00 $
Description
Vintage Hewlett Packard HP 28S Advanced Scientific Calculator comes with its original black leather-style protective case. This professional-grade graphing calculator features a dual-screen clamshell design with a full alphanumeric keyboard and a dedicated mathematical keypad. Renowned for its Reverse Polish Notation (RPN) and symbolic calculation capabilities, it serves as a powerful tool for engineers, students, and collectors of classic computing technology. The unit is well-preserved with clear labeling and responsive buttons. Brand: Hewlett Packard Model: 28S Type: Advanced Scientific Graphing Calculator Input Method: RPN (Reverse Polish Notation) Display: LCD Clamshell Keyboard: Alphanumeric & Numeric Case: Original HP Branded Soft Case Power Source: Battery Operated Color: Black/Gray Material: Plastic/Leatherette Keywords: Vintage Tech, Engineering Tool, Math Geek, Retro Computing, RPN Calculator, Scientific Instrument, HP28S, Graphing Calculator, Collectible Electronics, STEM, Physics, Calculus
Details
video
Delivery in 24/48 h
SHIPPINGS
Free shipping in Spanish mainland, Balearic Islands and Portugal.
For other countries the shipping cost will be paid by the client.
DELIVERY TIME (as of delivery)
Spanish mainland, Balearic Islands and Portugal: 1-2 working days.
Other countries, we attach a table with those that are open in the online store, indicating transporter and transit days.
Free returns
The return period is 14 calendar days from the receipt of the order.
Carriers for change of size in Spanish mainland, Balearic Islands and Portugal, are in charge of 24HRS.