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| Keywords: Thyratronsmall.jpg Large and small thyratrons - photo by Eric Barbour Large General Electric hydrogen thyratron used in pulsed radars next to miniature 2D21 thyratron used to control relays Photo taken 2004 EricBarbour This image was originally uploaded on en wikipedia org File history 05 45 16 September 2004 EricBarbour 10803 bytes Large and small thyratrons - photo by Eric Barbour <nowiki> PD </nowiki> Thyratrons General Electric vacuum tubes General Electric gas discharged tubes | ||||
