I don't have that many calculators anymore. For a while I collected calculators, after I had stopped going after old computers. They don't take up as much space by a long shot, and are simpler and thus less likely to not work. Still I eventually got rid of most of my collection, and now there are just a handful of favorites back home on the Big Island. Still if anyone out there has one in need of a good home email me. The one I dream of most is the Friden EC-130 or 132.

For a size comparison most of the pictures below include my cylinder of tungsten.

Abacus "Tenkaichi Soroban No. 1352" from Honoka'a High School 1990's, made in Japan. 15 x 5.5 x 1.5 cm. What calculator collection would be complete without an abacus. Not that this sort of collection can ever be COMPLETE.

"Sharp EL-8" four function probably made 1969-71, made in Japan, VFD, in case "Sharp Compet Elsi-8". 16 x 10 x 7 cm, 593g. This is arguably the first handheld portable calculator. It is simply incredible. A thing of beauty. This is my favourite calculator.

"Commodore 889D Serial No. 035021" four function, LED display, made in the U.S.A.

Calculator, four function, purple, LCD display, 6 x 4 x 1 cm.

"Sharp Elsi Mate EL-240H" four function, made in Japan. 12 x 7 x 1.5 cm.

"Targus Model: PAUK001 v.3.0" four function, made in China, LCD, connects to USB port as keypad, bought in 2004. 16 x 9.5 x 2.5 cm, 173g. I got this partially to use as an external keypad, unfortunately this feature refuses to work! Very annoying. Otherwise it is a simple four function calculator with nice clicky keys.

"Texas Instruments TI-30 Serial No. 1480891 LTA3976" made in the U.S.A., LED, 14.5 x 8 x 3.5 cm.

"Elektronika MK-61" scientific calculator, probably made in the U.S.S.R. or the Ukraine, VFD, with power supply "D2-10M" 5VDC 0.1A, with manual, bought in 2004. 16.5 x 7.5 x 3.5 cm, 236g. This along with the MK-52 below, was the peak of Soviet designed calculators. While even these models borowed alot from Western designs these were the last ones that were truly designed and built in the U.S.S.R., they continued to be built into the 1990s.

"Elektronika MK-52" scientific calculator, probably made in the U.S.S.R. or the Ukraine, VFD, with power supply "D2-37" 5VDC 0.1A, with manual, bought in 2004. 8 x 21.5 x 3.5 cm, 361g. This along with the MK-61 above, was the peak of Soviet designed calculators. While even these models borowed alot from Western designs these were the last ones that were truly designed and built in the U.S.S.R., they continued to be built into the 1990s.

"Hewlett Packard 41CV Serial No. 2231S4063" LCD, alphanumeric 14.5 x 8 x 3 cm.

"Radio Shack Scientific Calculator EC-4014" made in Japan, LCD. 13.5 x 7.5 x 1.

"Casio fx-300v Super-FX" scientific calculator, made in Japan.

"Hewlett Packard 6S Solar" scientific calculator, made in China, LCD, in plastic case. 12.5 x 7 x 0.5 cm, 64g. This is a nice simple modern scientific calculator.

"Hewlett Packard Advanced Scientific Calculator 28S Serial no. 2826A25310 1986" graphing calculator, made in the U.S.A., LCD display. Closed, 16 x 9.5 x 2 cm.

"Casio Graphic Overhead Projector Calculator OH-7000G" graphing calculator, made in Japan, tranparent LCD display. 22 x 12 x 4 cm.

"Hewlett Packard HP 38G S/N: 3525S00150" graphing calculator, made in Singapore, CPU: 4 MHz Yorke, Memory: 32K RAM 512K ROM, Screen Size: LCD, 131x64 pixels, 22x8 characters, released 1995, bought in 2004. 18 x 8.5 x 2.5 cm, 287g. With "HP-48" carry case. I used this model in high school, the last time I was taking advanced math courses. I prefer HP calculators to TI ones. This is the model I like to use for simple tasks. Unfortunately my original HP 38G was stolen from the car, along with many other things, while I was at Shipman's beach in Hawai'i in 2000.

"Texas Instruments TI-89 S/N: 2018008251 S-1201D" made in China, CPU: 12 MHz MC68000, Memory: 188K RAM, 639K Flash ROM, Screen Size: 160x100 pixels, bought in 2004. 18.5 x 9 x 2.5 cm, 268g. This is a powerful machine, I used to have a TI-92, which is almost the same as the 89.

If you go to my links page you´ll find calculator urls.

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