Antique radios, Old Time Radios

84

ID = 2862

Country:

United States of America (USA)

Brand:	Common type USA tube/semicond.
Developer:	Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Tube type:	Full-Wave Vacuum Rectifier Power-supply
	Ca. 1925 up to 1945 very rare. ***

Identical to

84 = 84/6Z4 = 6Z4 = 6Z4/84 = VT-84 = 84S = CV2548 = P864 = NU-84 = NU-G84-6Z4 = ER84

Similar Tubes

Normally replaceable-slightly different:

38184

Other class quality (otherwise equal):

CV619

Heater different:

84A

Other base:

7Y4 ; 84M

First Source (s)

Apr.1933 : 70 Years of Radiotubes and V.

1932 : -- Collector info (Sammler)

Successor Tubes

6X5G 6X5 6X5GT 7Y4

Base	UY-Base, 5 Pins (USA, April 1927) (Codex=H)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 Volts / If 0.5 Ampere / Indirect / Parallel, (AC/DC)
Description	60 mA DC at 325 V rms max into capacitive filter up to 40 uF. * RMA/JEDEC register record available by courtesy of TCA* - This tube was already listed by several manufacturers when RMA started its standardization in 1934. In order to characterize popular receiving types, manufacturers were asked to supply average characteristics as measured on production lots. Here are the filled answer forms supplied by Radio Valve Co., Raytheon, Sparton, Triad, Tung Sol, Ken Rad, Hytron and Arcturus. Full record is downloadable here. The type 84 tube was originally developed by Sylvania and first marketed by Philco in 1933. It was made with the S12 size bulb, by manufacturers such as Arcturus (with blue glass), Ken-Rad, National Union, Philco, and Sylvania. It was sold originally in March 1933.The companies listed above made the tube with the ST12 bulb and tubes of later manufacture had the double brand 84-6Z4.
Dimensions (WHD) incl. pins / tip	x 103 x 34 mm / x 4.06 x 1.34 inch
Tube prices	2 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49


	84: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Michael Schlör

84: My own collection
Hannu Alho

84: Telefunken Werkstattbuch
Wolfgang Bauer

84: Cunningham Radiotron Manual
Peter Hoddow

Usage in Models

1= 1932?? ; 1= 1932? ; 2= 1932 ; 4= 1933?? ; 34= 1933? ; 40= 1933 ; 24= 1934?? ; 21= 1934? ; 62= 1934 ; 51= 1935?? ; 21= 1935? ; 95= 1935 ; 23= 1936?? ; 29= 1936? ; 121= 1936 ; 19= 1937?? ; 3= 1937? ; 71= 1937 ; 6= 1938?? ; 5= 1938? ; 97= 1938 ; 19= 1939?? ; 16= 1939? ; 32= 1939 ; 3= 1940?? ; 3= 1940? ; 25= 1940 ; 10= 1941?? ; 3= 1941? ; 7= 1941 ; 8= 1942?? ; 2= 1942? ; 1= 1942 ; 1= 1943? ; 4= 1947?? ; 3= 1948?? ; 4= 1950?? ; 1= 1951? ; 4= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):876

Collection of Valery Gromov (RUS)

Collection of Hannu Alho (FIN)

Collection of Christian Schaufelberger (CH)

Collection of Jochen Amend (D)

Collection of a member from FIN

Collection of Aldo Patriarca (CH)

Collection of George Papaiz (CDN)

Collection of Bruce Morgenstern (CDN)

Collection of Markus Meier (CH)

Collection of Patrice Zeissloff (F)

Collection of a member from D

Documents about this component

RMA qualification record for tube types 76, 77, 78, 6C6, 6D6, 75, 41, 42, 2A5, 85, 6F7, 80, 84 and 6A7.

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