Antique radios, Old Time Radios
7W7
| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
Vacuum Pentode RF/IF-Stage |
|
Tube ID = 3958 |
 |
| Identical to |
7W7
|
| Similar
Tubes |
Different connections:
7V7
Other base and data slightly different:
6AB7
|
| First Source
(s) |
07.Nov.1941 : Electron Tube Registration List
|
| Predecessor Tubes |
6AB7
|
| Successor Tubes |
6AU7
6CB6
|
|
| Base |
Loctal-8, B8G (Sylvania, 1938) (Codex=Wk)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If: 0.45 Ampere / -: Indirect / -: Parallel, (AC/DC) / |
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Michael Schlör
|
|
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
Sylvania Technical Manual
Peter Hoddow
|
|
|
| Usage in Models (calculation each 25th of the
month) |
5= 1946? ; 11= 1946 ; 11= 1947? ; 6= 1947 ; 9= 1948 ; |
| Number of Models at Radiomuseum.org with
this tube (valve, valves, valvola, valvole,
válvula, lampe): 42 |
|
| No further Information
for |
7W7 |
|
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