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ID: 480698
This article refers to the component: To the tube/semiconductor

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15.Aug.18 21:13
352

Ottó Jancsek (H)
Articles: 49
Count of Thanks: 4
Ottó Jancsek

I have one of this guys. According my measurements, the filament is not half indirect. Pin 3 and 7 are the filament, but all others are cathode, except the top cup. So the filament is indirect.

Otto

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 2
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01.Jul.20 15:59
352 from 1060

Zoltán Kalmár (H)
Count of Thanks: 3

I checked my two examples of V22/7000, the cathode has indirect heating, indeed, but i observed and measured, that the filament is connected to the 5. and 7. pin. Greetings: Zoltán

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