The HP-15C calculator was produced by Hewlett-Packard from 1982 until it was discontinued in 1989. It had an original MSRP of $134.99. The 15C was part of HP’s Voyager line of calculators that began in 1981. The Voyager line, including the 15C, are all programmable calculators and use Reverse Polish …
This HP 35 was the first scientific pocket calculator and was introduced in 1972. It stayed in production until 1975 and retailed at a price of $395.00. The 35 was allegedly a hack by an HP engineer of the HP 9100 which was a large desktop calculator with a price …
Wow, this is one strange looking calculator! Some might call it stylish. In fact, in 1972 when it was introduced by Olivetti, it WAS stylish. It’s the Olivetti Divisumma 18 and is the wild creation of Mario Bellini one of the creative designers at the company at the time. It’s …
This fairly hard to find Hewlett Packard made HP 65 calculator was produced from 1974 up until 1977 and retailed for $795.00. It was HP’s first programmable pocket calculator and had a built in magnetic card reader – writer. It featured a single line red LED display and used RPN …
This Exactra 19 was part of the Exactra series that was manufactured by Texas Instruments though you wouldn’t know it by looking at the front of the calculator. For some reasons, possibly marketing, TI decided to place their only identifying mark on the back cover in small lettering. The Exactra …
This is a very rare Sanyo ICC-808D calculator. As you can see it utilizes nixie tubes (gas discharge tubes) for the display. It uses algebraic logic, has 4 functions and 18 keys. It was made in 1972 and has a level of popularity based not upon its calculating abilities nor …
This is the TI Concept II calculator. It was sold by a discount department store called Zayre’s in the mid 70’s and is basically a re-badged TI-1250. In fact, it’s exactly the same except for the colors on the faceplate. It was introduced by Zayre in 1976 and retailed for …
This HP 70 is a fairly difficult calculator to find in good working condition. It is a business calculator that Hewlett Packard offered as a lower end choice to the HP 80. As you can see it has a unique color scheme with the orange keys and green/gray case. It …
This is the Sharp EL-5001. It is similar in appearance to Sharp’s first programmable calculator, the PC-1201, but is not actually programmable. It was produced around 1977, is 6″ x 3″ x 1″, weighs 10 ounces and uses 2 AA batteries or Sharp’s EA-17E adapter. It also has 10 digit …
This is the HP 11C which was introduced to the calculator buying consumer in 1981 and was discontinued in 1989. The 11C is a scientific programmable calculator and had a retail price of $135.00 though by 1989 its price had dropped to $56.00. It featured a landscape liquid crystal display …
