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Philips Radio Valve Type R, by PhilIps, Holland, 1920s

Inventory Number: 84869

84869-1t 84869-2t

Date: 1920s

Maker Details: Signed by Philips.

Inscription: "PHILIPS / E" printed on exterior surface of bulb. "4 V / 50-200 V / Impote / de Hollande" printed on exterior surface of bulb.

Size: 110 mm in overall length (inclduing base pins)

Materials: Glass, steel, bakelite?, brass?, tungsten, assorted metals.

Other Given Number(s): Christie's 213.


Philips Radio Valve (or Tube) Type R with glass balloon, steel-plated brown bakelite? base and four brass? base pins. Base slightly damaged on surface. Previously catalogued with assorted other valves.

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