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AL1- First year: 1935
- Base: Europe side contac
- Filament: Vf 4 Volts / If 1.
- Identical to: AL1 = TL1 = TAL1 =
- Tube type: Vacuum Pentode P
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AL2- First year: 1935
- Base: Europe side cont
- Filament: Vf 4 Volts / If 1
- Identical to: AL2 = A4FF2 = TAL2
- Tube type: Vacuum Pentode P
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AL3- First year: 1935
- Base: Europe side contac
- Filament: Vf 4 Volts / If 1.
- Identical to: AL3 = TL3 = TAL3
- Tube type: Vacuum Pentode
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AL4- First year: 1936
- Base: Europe side contac
- Filament: Vf 4 Volts / If: 1
- Identical to: = 4684
- Tube type: Vacuum Pentode P
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AL4n- First year: N/A
- Base: Europe side contac
- Filament: Vf 4 Volts / If: 1
- Identical to: =AL4 = OSW3103 = A
- Tube type: Vacuum Pentode P
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AL5- First year: 1936
- Base: Europe side contac
- Filament: Vf 4 Volts / If 2
- Identical to: AL5 = WE42 = A70E
- Tube type: Vacuum Pentode P
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AM2- First year: 1937
- Base: Europe side cont
- Filament: Vf 4 Volts / If
- Identical to: AM2
- Tube type: Mag. Eye, 2 shadow
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AN4126- First year: 1933
- Base: Europe 6-Pin B6 (1
- Filament: Vf 4 Volts / If 1.
- Identical to: AN4126 = RENS1254
- Tube type: Diode-Tetrode
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AudioTron- First year: 1915
- Base: OTHER TUBEBASE in
- Filament: Direct / Battery =
- Identical to: AudioTron
- Tube type: TRIODE
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AZ1- First year: 1935
- Base: Europe side contac
- Filament: Vf 4 Volts / If: 1
- Identical to: = 140NG = TAZ1 = 4
- Tube type: Full-Wave Vacuum R
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