Antique radios, Old Time Radios
DF22_9pin
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Country:
Netherlands
|
|
| Identical to |
DF22_9pin
|
| Similar
Tubes |
Other base:
DF22
|
| First Source
(s) |
Dec.1939 : Daten und Schaltungen moderner ... Röhren; Philips # 3
|
| Predecessor Tubes |
KF3
|
|
Successor Tubes
|
1940
DF22
|
| Base |
Loctal-9-Pin (B9G)
|
| Filament |
Vf 1.4 Volts / If 0.05 Ampere / Direct / Battery = |
| Information source |
- - Manufacturers Literature 1940-1941
|
|
DF22_9pin: original Philips documents
Jacob Roschy
|
Just Qvigstad
|
DF22_9pin: own collection
Peter den Boer
|
Collection of
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