Antique radios, Old Time Radios

H4129D

Country:	Germany		Brand:	Valvo Radioröhrenfabrik GmbH; Hamburg
			Tube type:	Vacuum Pentode RF/IF-Stage Controlling (mu)

Tube ID = 2521

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Identical to	H4129D = RENS1294 = E447
Similar Tubes	Normally replaceable-slightly different: S434N
First year	1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)	Oct.1933 : Funkschau (FS)

Base	Europe 5-Pin (O5A, B5) (Codex=Fco)
Filament	Vf 4 Volts / If: 1.1 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Literature	Taschenbuch zum Röhren-Codex 1948/49


	H4129D: W.B. Wouter Brughmans

H4129D: R.Bogenschütz
Rainer Bogenschütz

H4129D: Telefunken Werkstattbuch
Wolfgang Bauer

H4129D: Valvo-Röhren-Daten 1934
Jacob Roschy

Usage in Models	1= 1933 ; 3= 1934 ; 1= 1935? ; 1= 1938??
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 6

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