General Electric XP-4.5 Tube
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19” (47.5 cms)
long, this protected tube, of the 30’s, bearing the “P” in its designation,
is similar in its basic construction to the Philips “Metalix”, the Machlett “Cyr”,
and the Eureka “6-100 p” tubes, but could
interchangeably be either water-cooled, or air-cooled by a metal radiator. “XP” tubes were offered either in a single
focus or a twin focus version. The one in this collection is a single large
focus (4.5mms) tube, of the line-focus type, air-cooled
by a metal radiator fixed on a heavy copper shaft that fits to a depth of
about 7” (18cms) into the anode end of the tube, deeply inside the anode
structure. The heavy protective housing is
made of thick, black, lead-containing material with a metal waist on which the
“GE” brand is molded on one side of the X-Ray port, while a “Victor” brand is
molded on the opposite one. The total weight of the tube in
its housing with its radiator is about 12.5 lbs (5.6 Kgs). The technical specifications of this item are not available, but they are expected to be in the vicinity of 100 kVp and 100mA. |
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This tube was
graciously donated to this collection
by Mr. Ronnie
Mills,
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