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in search for a suitable

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Plate XXIV. Fig 10. — 300 Diameters — Fused quartz manufactured in search for a suitable insulator material

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Plate XXIV. Fig. 11 — 300 Diameters — Same as Fig. 10 except under crossed nicols

ex W. D. Peaslee. "The Insulator Situation." Transactions of the American Institute of Electrical Engineers 36 (1917): 527-533

Fused quartz insulators are offered as the solution; means of overcoming manufacturing challenges have been found.
 

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tags: W. D. Peaslee; failure; the insulator situation; haruspicy