Antique radios, Old Time Radios

30

ID = 3105

Country:

United States of America (USA)

Brand:

Common type USA tube/semicond.

Common type USA tube/semicond. Genalex, BGE (brand), British General Electric Co. Pty Ltd.; Sydney, NSW. Osram (tubes/valves) - see British General Electrics; Sydney Philips Australia Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC Airline, Super-Airline, Wards (tubes) - see also Montgomery Ward; Chicago, IL Philco, Philadelphia Stg. Batt. Co.; USA Raytheon Mfg. Co.; Cambridge, MA Sylvania (Hygrade, GTE, Nilco); Emporium (PA) Triad Television & Mfg. Co.; Pawtucket, RI Van Dyke Laboratories; Newark, NJ Wizard (tube brand); (where ?)

Tube type:

Triode, vacuum Universal

Identical to

30 = 230 = CX330 = RCA30 = RCA230 = ER30 = 30S = PH230 = 430 = T-30 = C-230 = NU-30 = 130_Arcturus = T-31_triad = NX-230 = CX30 = ER230 = UX230 = X230 = VT-27

Similar Tubes

Normally replaceable-slightly different:

130_Triode ; FP59

Other class quality (otherwise equal):

1230 ; 38030

Different connections:

t-30-s

First year

1930 Radios von gestern, 2. Auflage

First Source (s)

Sep.1930 : Saga of the Vacuum Tube, Tyne p.329,330

Successor Tubes

1230

Base

UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)

Was used by

Radio/TV-reception etc.

Filament

Vf 2 Volts / If 0.06 Ampere / Direct / Battery =

Description

Typ:- Va=90; Ia=2.5mA; Vg=-4.5; gm=0.85mA/V.
Operation at Va<135V permissible

Dimensions (WHD)
incl. pins / tip

41 x 91 x mm / 1.61 x 3.58 x inch

Tube prices

4 Tube prices (visible for members only)

Information source

Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature

30: Courtesy Bureau Belper (De Muiderkring, Bussum) Anonymous 10 Collector
30: Telefunken Werkstattbuch Wolfgang Bauer	Just Qvigstad	30: Sylvania Technical Manual Peter Hoddow More ...

Usage in Models

5= 1930?? ; 2= 1930? ; 21= 1930 ; 4= 1931?? ; 10= 1931? ; 31= 1931 ; 2= 1932?? ; 23= 1932? ; 36= 1932 ; 9= 1933?? ; 8= 1933? ; 65= 1933 ; 14= 1934?? ; 11= 1934? ; 129= 1934 ; 30= 1935?? ; 25= 1935? ; 167= 1935 ; 47= 1936?? ; 15= 1936? ; 160= 1936 ; 28= 1937?? ; 16= 1937? ; 93= 1937 ; 26= 1938?? ; 4= 1938? ; 52= 1938 ; 22= 1939?? ; 7= 1939? ; 29= 1939 ; 13= 1940?? ; 5= 1940? ; 9= 1940 ; 8= 1941?? ; 5= 1941? ; 4= 1941 ; 2= 1942?? ; 1= 1942? ; 1= 1942 ; 1= 1943 ; 1= 1946? ; 3= 1946 ; 2= 1950 ; 1= 9999? ; 5= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1152

Collection of

Tomasz Szczesniak (PL)

Bruce Morgenstern (CDN)

Georges Werts (B)

Robert Gillespie (USA)

Collection of a member from D

Collection of a member from FIN

Ottmar Rollmann (D)

Lindsay Shepherd (AUS)

Jose Luis Villabona Horreo (E)

Collection of a member from FIN

David Erali (USA)

Tor Steinnes (N)

Michael Gnaedig-Fischer (MEX)

George Papaiz (CDN)

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