Qualitron Universal Conversion Calculator 1975 Model 1438 *missing Battery Lid CD David Attenborough has spent a

David Attenborough has spent a lifetime documenting the natural world

reat time entertaining and encouraging children to participate in different aspects

I Love My Man (Holiday

15 The Chipmunks & The Chipettes– I Gotta Feeling

Not available in the original: Survival Mode

Qualitron Universal Conversion Calculator 1975 Model 1438 *missing Battery Lid CD David Attenborough has spent aQualitron Universal Conversion Calculator Vintage Model 1438. In working order. Functions: ASMD, conversion factors Technology: MOS LSI (Rockwell A4004PC) Display: 8 digits, vacuum fluorescent module Dimensions: 75W x 145D x 35H, weight 250g. Manufactured: Qualitron, Taiwan, 1975 The Qualitron 1438 is a basic four function calculator with a range of pre programmed conversion factors for distance, mass, volume, and temperature. Two slider switches