Antique radios, Old Time Radios

0Y4

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Half-Wave Rectifier, gasfilled

Tube ID = 4083


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Identical to	0Y4
Similar Tubes	Other shape (e.g. bulb type): 0Y4G

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Voo)
Was used by	Radio/TV-reception etc.
Filament	Vf 0 Volts / If: 0 Ampere / -: No heater /
Description	Metal type primarily for vibrator-type B-supply units of automobile receivers. Utilizes a starter electrode and an ionically heated cathode. Starter anode permits operation of OY4 directly from 117 volts ac line. Pins 7 and 8 must be tied together at socket. RF filter circuits placed close to socket terminals are required to reduce rectifier noise.
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49

www.tubedata.com
Christian Schaufelberger

RCA Tube Manual
Peter Steffen

Usage in Models (calculation each 25th of the month)	2= 1946 ; 1= 1947 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 3

No further Information for

0Y4

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