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Installation view showing: Marconi two-valve radio receiver, c. 1920; early 20th century star finding device; 19th century electrostatic generator; violin form electromedical apparatus, c. 1900; first solar powered transistor radio, c.1957; pair of 19th century travelling globes, celestial and terrestrial; weight driven telegraph register, c.1870; 19th century vacuum pump philosophical apparatus.
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