Tina's Electronics

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Abaci

Addiators and Addometers

Circular Slide Rules

Pocket Watch Slide Rules

Cylindrical Slide Rules

Mechanical Calculators

Scientific Instruments

Drawing Instruments

Slide Rule Books

British Slide Rules

French Slide Rules

German Slide Rules

American Slide Rules

Japanese Slide Rules

World Slide Rules

Blundell

British Thornton

Fearn's and Mear's

Unique

Aristo

Faber-Castell

Nestler

Hemmi

Relay/Ricoh

Dietzgen

Keuffel and Esser

Pickett and Eckel

Slide Charts

Electronics

Raspberry Pi. This has an ARM710 CPU, Two USB Slots, a HDMI connection for the Monitor or TV, Linux Operating System on an SD Card, an Ethernet Connection, a Headphone Socket and lots of other stuff all on a single 3 1/2" by 2" Circuit Board.

Sinclair ZX Spectrum 48K

BBC B

Apple II Europlus

Advanced Micro Devices Am486 DX4-100 Central Processing Unit

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