Antique radios, Old Time Radios
ECC81
Country:
Europe
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Brand:
|
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Tube type: |
Double Triode VHF |
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Identical to |
ECC81
= 12AT7
= B152
= CC81E
= CV455
|
Similar
Tubes |
Normally replaceable-slightly different:
12AT7A
; E2157
Other class quality (otherwise equal):
7728
; CV4024
; M8162
Different connections:
6AT7
|
First year |
1951
Tube leaflet collection E.Erb Analysis by original leaflets
|
First Source
(s) |
Sep.1951 : Funk-Technik (FT) # 17
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Successor Tubes
|
1954
ECC85
6AQ8
|
Base |
Noval, 9 pin miniature (USA pico-9) B9A
|
Filament |
Vf 12.6 Volts / If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC |
Description |
Mentioned: Dec1950, Market: 1951. (Similar types:
12AT7, E81CC, ECC801, ECC801S, 6201)
Twin triode, the European version of the 12AT7,
especially designed for VHF, also good to use in
audio amplifiers; high amplification, low
internal resistance. Predecessors for VHF in
Europe were the pentodes EF42 and EF80.
Successors were the twin triodes ECC85, PCC85 and
UCC85 with a special shield between the triode
units.
Text in other
languages (may
differ)
|
Dimensions (WHD) incl. pins / tip |
22 x 57 x mm / 0.87 x 2.24 x inch |
Weight |
14 g / 0.49 oz |
Tube prices |
91 Tube prices (visible for members
only)
|
ECC81: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
More ...
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ECC81: RTT 1974 (Franzis) 13. Auflage
Martin Renz
More ...
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Just Qvigstad
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ECC81: Telefunken Taschenbuch 1971
Anonymous 15 Collector
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2184
Collection of
Collection of a member from SK Collection of a member from FIN Collection of a member from D Collection of a member from D Collection of a member from D
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Variants
The early Philips productions of noval tubes were run on the same lines already in use for rimlock valves. These productions are identifiable by the sharp and regular edge of the base, glass frit bonded or glazed to the body. Another peculiar feature of these tubes is that the electrode pack is firmly welded to some of the base pins, no large mica spacers pressed against the internal wall of the envelope.
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Forum contributions about this tube
ECC81
Threads: 1 | Posts: 2
Hits: 5675 Replies: 1
ECC81 (ECC81) - dünnere Röhrenstifte
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Helmut Weigl
18.Oct.09
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1
ich habe in meinem Bestand eine ECC81 des Herstellers Funkwerk Erfurt.
Diese Röhre hält nicht in einer normalen (gebrauchten) Röhrenfassung. Alle anderen Röhren meines Bestandes wackeln aber in derselben Fassung nicht.
Ich habe die Stifte nachgemessen. Der Durchmesser eines Stiftes beträgt 0,95 mm (andere Röhren 1,0 mm). Noch dazu ist die Spitze konisch und die Stifte ca. 1 mm kürzer als die der anderen Röhren.
Wer weiß, ob diese Röhre bewußt so hergestellt wurde, oder ob es sich um einen Fabrikationsfehler handelt?
Nachstehend ein Foto der ECC81 (Vergleichsweise eine Röhre mit normalen Stiften).
vielen Dank
Helmut Weigl Attachments
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Helmut Weigl
19.Oct.09
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2
Inzwischen haben mich zwei emails erreicht. Es gibt noch weitere Röhren mit dünneren Stiften:
weitere ECC81, sowie EZ80, EF80 und EF84.
Die Stifte scheinen bewußt so gefertigt worden zu sein. Die konischen Stifte lassen sich wohl leichter in die Fassung einstecken. Allerdings sind nicht alle Fassungen dafür geeignet.
Wer hat weitere Infos?
---------
Ergänzung: Weitere Röhrentypen:
EABC80
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ECC81
End of forum contributions about this tube
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