Antique radios, Old Time Radios

RES347

Country:	Italy		Brand:	Telefunken Italia, Milano
			Tube type:	Vacuum Pentode Power/Output

Tube ID = 28257


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Identical to	RES347 = VT-47 = 47 = PH247
Similar Tubes	Normally replaceable-slightly different: 247; UY-247; UY-47
First Source (s)	Jun.1931 : - - Data from my own collection

Base	UY-Base, 5 Pins (USA, April 1927)
Was used by	Radio/TV-reception etc.
Filament	Vf 2.5 Volts / If: 1.7 Ampere / -: Direct / -: Parallel, (AC/DC) /
Description	Telefunken Nachbau der USA type 47. Text in other languages (may differ)
Literature	- - Data from my own collection - - - - - - - - -

Telefunken Werkstattbuch
Wolfgang Bauer

Usage in Models (calculation each 25th of the month)	1= 1932 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1

No further Information for

RES347

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