Antique radios, Old Time Radios

112A

ID = 3747

Country:

United States of America (USA)

Brand:	Common type USA tube/semicond. Common type USA tube/semicond. Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC CeCo (tubes), C.E. Mfg. Co. Inc.; Providence, RI Everbest Radio Corp.; New York, NY Kelly Tube Co.; New York, NY Lafayette Radio & TV Corp; New York (NY) Legion (Tube brand); (Where ?) Paramount Radio Tube Co.; Brooklyn, NY Philco, Philadelphia Stg. Batt. Co.; USA Roytron (tubes) - see also Triad Television & Mfg. Co.; Pawtucket, RI Sparton-Cardon Tubes; Jackson MI Speed, Cable Radio Tube Corp. / Cable Supply Co.; New York and Brooklyn, NY Thorola, Winkler-Reichmann Co.; Chicago, IL Van Dyke Laboratories; Newark, NJ
Developer:	Westinghouse El. & Mfg. Co. - see also Canadian W.
Tube type:	Triode, vacuum Power/Output

Identical to

112A = UX112A = CX112A = 12A = NX112A = CV1774 = X112A = C-112A = PA112A = DX112A = NU-12A = GX112A = SLX112A = T-12A_Triad = P112A

Similar Tubes

Normally replaceable-slightly different:

C508

Heater different:

112 ; UX112

First year

1927 Saga of the Vacuum Tube, Tyne page 315

Predecessor Tubes

UX112

Base

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

Was used by

Radio/TV-reception etc.

Filament

Vf 5 Volts / If 0.25 Ampere / Direct / Battery =

Description

USA

Dimensions (WHD)
incl. pins / tip

x 108 x 45 mm / x 4.25 x 1.77 inch

Weight

47 g / 1.66 oz

Tube prices

2 Tube prices (visible for members only)

Information source

Taschenbuch zum Röhren-Codex 1948/49

112A: MK-Röhrentabelle Daniel Consales
112A: Telefunken Werkstattbuch Wolfgang Bauer	Just Qvigstad	112A: Cunningham Radiotron Manual Peter Hoddow More ...

Usage in Models

5= 1927 ; 2= 1928?? ; 2= 1928? ; 24= 1928 ; 3= 1929?? ; 7= 1929? ; 10= 1929 ; 3= 1930?? ; 4= 1930? ; 7= 1930 ; 2= 1931?? ; 1= 1931 ; 1= 1932?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):71

Literature "Electronics" Vol. 2 No. 5 | 1931-05

Collection of

Alexander Hofer (A)

Nikolaus Löwe (D)

Bruce Morgenstern (CDN)

Robert Gillespie (USA)

Patrice Zeissloff (F)

Pedro Prieto-Castro (E)

112A

Forum contributions about this tube

112A

Threads: 1 | Posts: 2

Hits: 3018 Replies: 1 112A (112A)
Hans-Peter Ladwig 27.Apr.06	1 112A (112A) Ein Bild der Röhre ist unter dem Radiomodell 67 des Geräteherstellers Atwater Kent, USA abgelegt. Es handelt sich dabei um die Röhrentype CX 112-A von Cunningham.
Konrad Birkner † 12.08.2014 27.Apr.06	2 112A etc. Hallo Herr Ladwig, Diese Röhre hat etliche Paralleltypen. Bitte bei der Röhre nachsehen, Röhrenbild wurde zur CX112A verschoben Danke.

112A
End of forum contributions about this tube

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112A

Common type USA tube/semicond.

Collection of