Antique radios, Old Time Radios
501
Base |
Europe 3-Pin B3 (Eu H)
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Was used by |
Radio/TV-reception etc. |
Filament |
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Description |
This tube is not listed on either page 3 or 4 of the Philips Type Number Book (radios, rectifiers and ballast tubes). The light bulb catalog no 743E, November 1923, lists the 501 as a "canopy" for the alabasta bulb. (Note; It has been confirmed by Philips that type numbers for both bulbs and tubes were alotted in sequence in the 1920's, as a product was developed, regardless of it being either a bulb, tube, or radio. "Doubling up" with type numbers appears to have occurred at least twice.
Text in other
languages (may
differ)
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Information source |
Taschenbuch zum Röhren-Codex 1948/49
Ballast-Tube Handbook; Jacobi 1985
-- Collector info (Sammler)
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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501: Fin Stewart
Fin Stewart
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
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Forum contributions about this tube
501
Threads: 1 | Posts: 2
Hits: 2079 Replies: 1
501 (501)
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Tomasz Szczesniak
08.Mar.15
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1
Attached photo does not match tube description, this is AC heated triode, some clone of Mc Cullough Kellog tube.
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Otmar Jung
08.Mar.15
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2
That's right, the photos belong to the tube 501_Sovereign.
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501
End of forum contributions about this tube
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