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It be used as a learning resource and gives parents the tools to help teach their child
Colour: Blue
• Cambisol (brown earth)
• Hard-wearing racquet with 12mm aluminium frame for longevity
• Podzol (elluviated sandy horizon)
S-Range Scaler-Timer Furniture It be used as aA general purpose scaler timer suitable for radioactivity counting utilising Geiger Muller tubes ; and as a general purpose millisecond digital timing device with manual or electronic triggering. The bright L. E. D. has six digits, 24mm high, making it suitable for individual use or class demonstration. In the radioactivity mode an adjustable 300 to 500V E. H. T. supply for G. M. tubes. Loudspeaker sockets are also provided for use when an audible
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