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Country:
United States of America (USA)
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Brand:
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Common type USA tube/semicond.
Amalgamated Wireless Valve Co. Ltd. (AWV); Sydney, NSW
Genalex, BGE (brand), British General Electric Co. Pty Ltd.; Sydney, NSW.
Ken-Rad - see also Amalgamated Wireless Valve Co.
Osram (tubes/valves) - see British General Electrics; Sydney
Philips Australia
Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC
Cunningham Inc., E.T.; Harrison (NJ)
National Union Radio Corp.; Orange (NJ)
Raytheon Mfg. Co.; Cambridge, MA
Triad Television & Mfg. Co.; Pawtucket, RI
Tung-Sol Electric Inc.; Newark (NJ)
Wizard (tube brand); (where ?)
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| Tube type: |
Pentagrid-Converter (Heptode) Frequency converter Controlling (mu) |
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| Identical to |
6A7
= Ut6A7
= Ut-6A7
= 6A7E
= G-6A7
= CV1870
= NU-6A7
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| Similar
Tubes |
Other shape (e.g. bulb type):
6A7S
; G-6A7-S
Normally replaceable-slightly different:
38617
Other class quality (otherwise equal):
NU-6A7S
Heater different:
2A7
Other base:
6A7_Octal
; 6A8G
Multiple differences or of other kind:
MH1118
; UPG105
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| First year |
1933
-- Collector info (Sammler)
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| First Source
(s) |
Mar.1933 : The AWA Journal Vol. 7, 1992.
01.Aug.1934 : Electron Tube Registration List
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Successor Tubes
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6A8
6A8G
6A8GT
6WC5
6W-C5
|
| Base |
7-Pin-Base U7A = small, old, USA (Codex=Mh)
Top contact with a cap.
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
* RMA/JEDEC register record available by courtesy of TCA* - This tube was already listed by several manufacturers when RMA started its standardization in 1934. In order to characterize popular receiving types, manufacturers were asked to supply average characteristics as measured on production lots. Here are the filled answer forms supplied by Radio Valve Co., Raytheon, Sparton, Triad, Tung Sol, Ken Rad, Hytron and Arcturus. Full record is downloadable here.
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Dimensions (WHD)
incl. pins / tip |
x 116 x 38 mm / x 4.57 x 1.50 inch |
| Weight |
39 g / 1.38 oz |
| Tube prices |
5 Tube prices (visible for members
only)
|
| Information source |
Essential Characteristics, GE 1973
Tube Lore (II) p. 47 & 183
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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6A7: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Anonymous 10 Collector
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6A7: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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6A7: Sylvania Technical Manual
Peter Hoddow
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7092
Collection of
Collection of a member from FIN Collection of a member from FIN
| Documents about this component |
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RMA qualification record for tube types 76, 77, 78, 6C6, 6D6, 75, 41, 42, 2A5, 85, 6F7, 80, 84 and 6A7. |
1569 KB |
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