E280F Triode mode operating point

[frankmalz]

Hi to all,

someone here who experimented with the 7722/E280F in Triode mode as a driver for the 300B?

I have a few tubes on hand and looking for operating suggestions.

Thanks

Frank

 

[santitrucco]

please , somebody that help us whith operating point to e280f !!!
pleaseeeeeeeeeee !!!

 

[jerluwoo]

From what I see in datasheet http://www.mif.pg.gda.pl/homepages/frank/sheets/009/e/E280F.pdf the recommended operating point looks pretty good. So you need B+=320V, plate load 6.5k, cathode resistor 75 ohms, which will give you the operating points 160v@24mA.