| Identical to |
400B_WE
|
| Similar
Tubes |
1R5 (Heater different)
400A_WE (Heater different)
|
|
| Base |
Miniatur-7-Pin-Base B7G, USA 1940
|
| Was used by |
Telephony |
| Filament |
-: Indirect /
If: 0.65 Ampere /
Vf 1.15 Volts /
|
| Description |
Miniature pentagrid converter for telephone repeaters. Indirect heating version of 400A WE. Same as 1R5 but for filament voltage.
|
| Dimensions (WHD) |
41 x 130 x mm / 1.61 x 5.12 x inch |
| Literature |
Tube Lore, Sibley, USA 1996
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