Antique radios, Old Time Radios
3A/109A
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Country:
Great Britain (UK)
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| Identical to |
3A/109A
= 4021A
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| Similar
Tubes |
Other shape (e.g. bulb type):
4630
; CV1671
; SY4021A
Normally replaceable-slightly different:
VT102_GPO
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| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
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| Was used by |
Telephony |
| Filament |
Vf 4 Volts / If 0.25 Ampere / Direct |
| Description |
Telephone repeater tube
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Dimensions (WHD)
incl. pins / tip |
57 x 114 x mm / 2.24 x 4.49 x inch |
| Weight |
65 g / 2.29 oz |
| Information source |
- - Manufacturers Literature
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3A/109A: Fin Stewart
Fin Stewart
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Just Qvigstad
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