Antique radios, Old Time Radios
EF81
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Country:
Australia
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| Identical to |
EF81
= 6BH5
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| Similar
Tubes |
Other base:
EF41
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| First Source
(s) |
28.May.1951 : Electron Tube Registration List Record 978
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AC/DC |
| Description |
RF/IF amplifier, EF41 rebased to 9-pin noval. Part of the Innoval family, early noval tubes with frit-seal base sealing to envelope, first introduced by Philips Australia.
This tube was introduced in 1951, to extend the Innoval line to FM radio sets.
Quite unusual, this Philips tube does not have any European equivalent. It was only made for the Australian market.
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EF81: My book.
Pier Antonio Aluffi
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Just Qvigstad
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EF81: My book
Pier Antonio Aluffi
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
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