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Effect of temperature and pressure on the sparking voltage (1920)
NASA Technical Reports Server (NTRS) · leaf 7
JZZZ SB Sparking 7ermino/s ^Window. Thermocouple. ^-7l/be to pressure Tbnfr. SPARK PLUG BOMB. FiqNoJNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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