The ECC81 Gallery
12AT7 6201 ECC801S |
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The ECC81 was the
first double triode with noval socket introduced by Valvo in 1951. Most
tubes of this type were not made in the Netherlands. Only very few came
from the plant in Heerlen. The most common type (with VF1 code) was made
by Siemens & Halske in Munich, Germany. Very extraordinary: The blue print
6201 and the coin base tube. |
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ECC 81 |
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ECC 81 |
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Code: YKB DX
Hamburg
Characteristics:
- coin base
- D-Getter
Comment:
Very rare.
Click to see its
old style box. |
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Code: VF2 DXX,
Hamburg
Characteristics:
- long getter arm
- no hole in plate side
Comment:
Quite rare. |
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ECC 81 |
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CV 4024 |
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Code:
VF1
≠ Siemens &
Halske
Characteristics:
- plate with 1 side hole
- ring getter with long arm
Comment:
Very common
type. Made in Munich, Germany |
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Code: CV 4024
Characteristics:
- ring getter
- gold pins
Comment:
Rare. |
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ECC 81 |
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6201 blue |
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Code: VF3 BXXX Blackburn, U.K.
Characteristics:
- plate with three side holes
Comment:
Quite rare. Also seen as
CV455. |
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Code:
Df1 DX Hamburg
Characteristics:
- pinched waist
- D-Getter / gold pin
Comment:
Ultra rare. |
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ECC 81 |
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6201 |
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Code: Tk BXXX Blackburn, U.K.
Characteristics:
- plate with three side holes
Comment:
Quite rare. Also with yellow
print (Tk3 B5F4) - click here. |
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Code: Df6 DX Hamburg
Characteristics:
- closed getter
Comment:
Very rare. |
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ECC 81 |
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ECC 81 |
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Code: Tk2
FXXX Suresnes, France
Characteristics:
- Plate with one side hole
- ring getter
Comment:
Rare. |
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Code: Tk1 DX Hamburg
Characteristics:
- square getter
Comment:
Quite rare. |
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ECC 81 |
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E81CC |
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Code:
Tk1 Δ8X Heerlen
Characteristics:
- no side hole in plate
- D-Getter with cross bar
Comment:
Very Rare. |
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Code: CØ6
≠XX
Munich (Siemens)
Identified by:
- triple mica
- plate with 2 side holes
Comment:
Rare. Very nice tube. |
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