Antique radios, Old Time Radios
LK4250
Country:
Germany
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Identical to |
LK4250
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Similar
Tubes |
Other class quality (otherwise equal):
4641
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Base |
Philips big W4 (Codex=Byy)
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Filament |
Vf 4 Volts / If 2.5 Ampere / Direct / Specified voltage AC/DC |
Description |
Lautsprecher-Kraftröhre von Valvo. Entspricht der Philips 4641.
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Information source |
Taschenbuch zum Röhren-Codex 1948/49
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LK4250: rtt
Anonymous 10 Collector
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Just Qvigstad
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LK4250: Valvo Röhrendatenblatt
Martin Steyer
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
Collection of
Collection of a member from D
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Forum contributions about this tube
LK4250
Threads: 1 | Posts: 1
Hits: 2017 Replies: 0
LK4250 (LK4250)
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Ralf Keil
25.Mar.14
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1
Die Röhre hat keinen UX4-Sockel, es ist ein Spezialsockel den ich nur noch von der Philips 4641 kenne. Er hat einen grossen Elektrodenabstand der zur besseren Isolation bei hohen Temperaturen dienen sollte.
R.Keil
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LK4250
End of forum contributions about this tube
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