Please click your language flag. Bitte Sprachflagge klicken.

Wrong data on this page

Jacob Roschy Martin Renz Ernst Erb Bernhard Nagel Eilert Menke 
Please click the blue info button to read more about this page.
Forum » Valves / tubes - Semiconductors » VALVES/TUBES / SEMICONDUCTORS in RADIOMUSEUM » Wrong data on this page
Ottó Jancsek
Ottó Jancsek
H  Articles: 43
Pict.: 15
15.Aug.18 21:13

Count of Thanks: 3
Reply  |  You aren't logged in. (Guest)   1

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.


Zoltán Kalmár
H  Articles: 1
Pict.: 41
01.Jul.20 15:59

Count of Thanks: 3
Reply  |  You aren't logged in. (Guest)   2

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