Antique radios, Old Time Radios

A410

Country:	Germany		Brand:	Valvo Radioröhrenfabrik GmbH; Hamburg
			Tube type:	Triode, vacuum

Tube ID = 1934


	previous \| next

Identical to	A410
Similar Tubes	Normally replaceable-slightly different: A406; A9
First Series	1925 Tube leaflet collection E.Erb Analysis by original leaflets

Base	Europe 4-Pin (A, 4A, B4, since 1914)
Was used by	Radio/TV-reception etc.
Filament	Vf 4 Volts / If: 0.1 Ampere / -: Direct / -: Battery = /

Andreas Blohm

Telefunken Werkstattbuch
Wolfgang Bauer

RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	10= 1924 ; 1= 1925? ; 11= 1925 ; 2= 1926? ; 9= 1926 ; 1= 1927?? ; 2= 1927? ; 6= 1927 ; 1= 1928? ; 2= 1928 ; 1= 1929? ; 2= 1930 ; 1= 1931?? ; 1= 1932?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 50

Further Information for

A410

A410 (A410) (22.08.2008) Georges Van Campenhout	Clicks: 227 Replies: 1
Dear all, in the Olens Radiomuseum (Belgium) I found a set, equipped with 4 Philips tubes A410. At the back of the tubes, there are two strange markings: the first says RECLAME, and the second, in thinner lettering: INUTILISABLE. This french word means 'cannot be used'. As I understand it are these lamps meant for pubilcity. I measured the heater, and it is seems to be open circuit! Has anyone an explanation for it? More ...

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]