| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
HEPTODE Controlling (mu) |
|
Tube ID = 4137
|
 |
| Identical to |
1D7G
|
| Similar
Tubes |
1A6 (other base)
|
|
| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ut)
|
| Filament |
-: Direct /
If: 0.06 Ampere /
Vf 2 Volts /
|
| Tube prices |
0 Tube prices (visible for members
only)
|
| Literature |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
|
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|
|
Collection JR
Jacob Roschy
|
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Telefunken Werkstattbuch
Wolfgang Bauer
|
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Sylvania Technical Manual
Peter Hoddow
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