EF39 as 300B driver...

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The EF39 is a variable conductance pentode for use in RF.
But in the Philips datasheet this tube is cited as audio amplifier if a negative voltage is apply on grid 1 for to fix the gain, see:

http://www.mif.pg.gda.pl/homepages/frank/sheets/030/e/EF39.pdf

Someone uses this tube as audio amplifier ?
I saw this video and the sound appears nice:

https://www.youtube.com/watch?v=OzeiJLSJHq0

Thanks

Aldovan

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Topic - EF39 as 300B driver... - Aldovan 14:38:38 06/13/15 (8)

RE: EF39 as 300B driver... - Al Noakes 22:57:11 06/13/15 (0)

RE: EF39 as 300B driver... - Triode_Kingdom 16:28:05 06/13/15 (6)

RE: EF39 as 300B driver... - Aldovan 16:37:23 06/13/15 (5)

RE: EF39 as 300B driver... - vinnie2 18:21:07 06/13/15 (0)

RE: EF39 as 300B driver... - Triode_Kingdom 17:48:15 06/13/15 (3)

RE: EF39 as 300B driver... - Aldovan 19:00:36 06/13/15 (2)

RE: EF39 as 300B driver... - amnesiac 05:08:54 06/14/15 (1)

RE: EF39 as 300B driver... - Aldovan 05:39:16 06/14/15 (0)

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