Antique radios, Old Time Radios
A3_Stal
|
Country:
France
|
|
Brand:
|
Stal; (brand) |
| Tube type: |
Triode, vacuum Power/Output |
| |
Ca. 1925 up to 1945 rare. |
|
| Identical to |
A3_Stal
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
|
| Filament |
Vf 2 Volts / If 0.22 Ampere / Direct / Battery = |
| Description |
Amplification factor 8.3, internal resistance 6250 Ohm, slope 1,33 mA/V
|
Dimensions (WHD)
incl. pins / tip |
48 x 1123 x mm / 1.89 x 44.21 x inch |
| Weight |
51 g / 1.80 oz |
| Information source |
|
|
A3_Stal: Fin Stewart
Fin Stewart
|
Just Qvigstad
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A3_Stal: own collection
Peter den Boer
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Collection of
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