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| Identical to |
A410
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| Similar
Tubes |
A406 (can normally be replaced - small diff'ce)
A9 (can normally be replaced - small diff'ce)
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| First Series |
1925 Tube leaflet collection E.Erb Analysis by original leaflets |
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| Base |
Europe 4-Pin (A, 4A, B4, since 1914)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.1 Ampere /
Vf 4 Volts /
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Andreas Blohm
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Telefunken Werkstattbuch
Wolfgang Bauer
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RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
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| Further Information for |
A410 |
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A410 (A410)
(22.08.2008) Georges Van Campenhout
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Clicks: 168 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?
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