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Datasheet ECC81 Equivalent ( PDF ) |
| N.º | Número de pieza | Descripción | Fabricantes | |
| 11 | ECC81 | A. F. DOUBLE TRIODE ECC81 - 12AT7, 6201 4
ECC81
A. F. DOUBLE TRIODE Base: NOVAL
Uf = 6,3 or 12,6 V If = 300 or 150 mA
Typical characteristic:
Ua = 250 V Ia = 10 mA Ug = -2 V S = 5,5 mA/V µ = 60 Ri = 11 kΩ
Limiting values: Ua = 300 V Wa = 2,5 W Ik = 15 mA Ug = -50 V
Uk/f = 90 V Rg = 1 MΩ
Dimension and connection |
 JJ |
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| 10 | ECC81 | Double Triode "Ei-RC" - Electronic tubes factory
ECC81/12AT7
ECC81 is R.F. Double Triode
Data Sheet Page 1 of 4
Quick reference data
• Anode current Ia=10mA • Transcoductance S=5,5mA/V • Amplification µ=60
Heating
Heating is indirect by AC od DC, with serial or parallel supply. Please note that, in case |
 Ei-RC |
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| 9 | ECC81 | Double Triode 1955 page 1 2 3 4 5 6 7 8 9 10 11 12 13 14
ECC81 sheet 1 2 A B C D E F G H I J K FP
date 1955.03.03 1955.03.03 1951.06.06 1951.06.06 1955.01.01 1955.01.01 1955.01.01 1955.01.01 1951.06.06 1951.06.06 1951.10.10 1951.10.10 1951.10.10 1999.02.16
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 Philips |
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| 8 | ECC81 | Steile Doppeltriode |
 RFT |
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