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Stato:
USA (Stati Uniti d'America)
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Produttore:
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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
Don Shinkukan Seisakusho - Don Vacuum Valve Mfg.; Tokyo
Airex Radio Tubes Co.; New York
CeCo (tubes), C.E. Mfg. Co. Inc.; Providence, RI
Dynamic Radio Tube Works; Newark, NJ
General Electric Co. (GE); Bridgeport CT, Syracuse NY
Macy's, R.H. Macy & Co.; New York, NY
Norelco, North American Philips Co. Inc.; Dobbs Ferry and New York, NY
Sparton-Cardon Tubes; Jackson MI
Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Triad Television & Mfg. Co.; Pawtucket, RI
Tung-Sol Electric Inc.; Newark (NJ)
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| Progettista: |
Westinghouse El. & Mfg. Co. - see also Canadian W. |
| Tipo: |
Triodo a vuoto Power/Output |
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| Identico a |
45
= 145
= A245
= ER45
= PH245
= SX245
= MX245
= L45
= P245
= RYB245
= R45_Rogers
= EX645
= UX245
= 445
= 245/C
= ER245
= DX245
= PA245
= AC45
= TX-45
= VX245
= X245
= T-45
= G-45
= Z-45
= AX-245
= CL-45
= RayX-245
= NU-45
= C-245
= NX-245
= TX245
= TS245
= 245
= CX345
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| Valvole
simili |
Other shape (e.g. bulb type):
102A_Boonton
; M45
; PM245
Sostituita normalmente - piccola diff.:
38045
; CA245
; FX245
; U245
; VT-45
Other class quality (otherwise equal):
536A_Boonton
; CV610
Heater different:
UY-45H
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| Prime serie |
Mar.1929
Saga of the Vacuum Tube, Tyne page 322.
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| Prime
informazioni |
Jun.1929 : -- Collector info (Sammler)
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| Sostituisce i modelli |
71A
|
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Evoluzioni
|
2A3
45spec
VT-52
|
| Zoccolo |
UX-Base (4 Pins (2 thick, USA 1924)
|
| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 2.5 Volt / If 1.5 Ampere / Direct / Specified voltage AC/DC |
| Descrizione |
According to Tyne, page 322, this audio-power output tube was introduced in March 1929. It is intermediate between UX171A and UX210 and was first named UX245, later in short 245 and 45. See other identical denominations too. The oxide-coated filament operates at 2.5 volts AC or DC, taking 1.4 amperes. The anode is of sheet nickel, carbonized to facilitate radiation. Power output about 0.8 watt.
"Development was started by Westinghouse in June 1928."
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Dimensioni (LxAxP) incl.pins/tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Peso |
47 g / 1.66 oz |
| Quotazioni |
10 Quotazioni (visibili solo per gli
associati)
|
| Bibliografia |
Essential Characteristics, GE 1973
Tube Lore (II) p. 27
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| Tube Tester Data |
Avo CT160 |
45: Courtesy Bureau Belper (De Muiderkring, Bussum)
Anonimo 10 Collezionista
|
45: Telefunken Werkstattbuch
Wolfgang Bauer
Segue ...
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Just Qvigstad
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45: Sylvania Technical Manual
Peter Hoddow
Segue ...
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Numero
totale di modelli di Radiomuseum.org che
utilizzano questa valvola:1326
Collezione di
Collezione di un iscritto da CH Collezione di un iscritto da I
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Varianti
Ausführung mit blauem Glas.
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Metal coated cylindrical glass version. Complete name: M45. The letter "M" appears only on the boxes and enclosed paperwork, not on the tubes.
Please klick here: M45
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