| Identical to |
AL2
= A4FF2
= TAL2
= TL2
|
| Similar
Tubes |
AL2/375 (different maximum ratings)
APP4A (Other base and other base diagram)
4682 (different maximum ratings)
|
| First Series |
Mar.1935 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Mar.1935 : Philips Bulletin
|
| Predecessor Tubes |
E463
L4138D
TE63
RENS1384
APP4130
P441N
|
| Successor Tubes |
AL3
AL4
|
|
| Base |
Europe side contact base P (P8A) (Codex=Sfo)
Top contact with a cap
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
If: 1 Ampere /
Vf 4 Volts /
|
| Description |
As before with E443H and E463, Philips
offered simultaneously with the directly heated
AL1 the equally sized indirectly heated AL2 with
the advantage of less hum and easier obtaining of
grid bias. Its spreading was also far below the
AL1.
[Jacob Roschÿ, 26 Jan 2003]
Text in other
languages (may
differ)
|
| Tube prices |
3 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49 Design = Philips (in Germany not used)
|
|
