Antique radios, Old Time Radios
AF
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Country:
United States of America (USA)
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| Identical to |
AF
= NU-82
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| Similar
Tubes |
Normally replaceable-slightly different:
82
; G-82
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| First Source
(s) |
1929 : Saga of the Vacuum Tube, Tyne p.342
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2.5 Volts / If 3 Ampere / Direct / Specified voltage AND current AC/DC |
| Description |
This tube was released by Arcturus in 1932. It is used in larger radios and class B power amplifiers where the B current is high.
There is an internal fuse in one of the "leading-in" wires in the base, to protect the power transformer if the tube suffers a short circuit.
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Dimensions (WHD)
incl. pins / tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Weight |
49 g / 1.73 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
Tube Lore (II) p. 31
-- Collector info (Sammler)
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AF: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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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):1
Collection of
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