Antique radios, Old Time Radios

C301

Country:	United States of America (USA)	Brand:	Cunningham Inc., E.T.; Harrison (NJ)
		Developer:	GEC, General Electric Co.; London
		Tube type:	Triode, vacuum Universal

Tube ID = 19762


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Identical to	C301 = UV201
Similar Tubes	Heater different: UV201A Heater and shape different: DV2
Successor Tubes	C301A

Base	UV-Base (4 Pins+Bayonet, USA 1914)
Was used by	Radio/TV-reception etc.
Filament	-: Direct / -: Battery = /
Description	Tyne page 308ff brings the details of history. Here the main points only: The first tubes RCA is marketing in 1920 are the detector tube UV200 with argon gas filling and the UV201 Amplifier. Manufacturer was General Electric (GE). Both tubes are operated with a filament current of 1 ampere and at 5 volts. Both have pear-shaped bulbs and are tipped. The base has a mantle of brass with a ceramic insert in thich the pins are imedded. Cunningham is naming his as C-300 and C-301. In 1922 GE replaces the UV201 with the UV201A, having now a thorium filament. In 1925 this tube comes with a new base and standardised construction (of 1923) for neutrodyne apparatus and is then called UX201A. Cunningham is naming the tube CX301A. By having the tube with a shoulder type glass envelope (dome type) in 1932 the designation is changed to 01A. The 01A marks the end of this line of tubes. Text in other languages (may differ)

Patrice ZEISSLOFF
Patrice Zeissloff

KoBi
Konrad Birkner

Usage in Models (calculation each 25th of the month)	2= 1920 ; 13= 1921 ; 1= 1922 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 16

No further Information for

C301

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