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Old 9th Jan 2007, 12:34 pm   #21
oldeurope
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Location: Solingen, Germany
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Smile Re: making an audio output triode...

Quote:
Originally Posted by cathoderesistor View Post
Great work, Darius.
Have you carried out any distortion analysis? Power Triodes produce mainly
2H ofcourse.
No, not jet. But the graph is the same like the propagated in the data book for the ECC82 multipled by (B+1)
Hi I just tested both systems of an used Telefunken ECC82 in parallel and the BU4525AXPH/10. I get the same characteristics as 22 triode systems or eleven ECC82 in parallel. I am going to use Uplate=250V platecurrent=100mA Ugrid=-11,5V s=25mA/V or a bit more micro=17 Rout=1KOhms.
This is the triode I was ever searching for...
So R cathode =120Ohms HT= 270V Transformer Primary/ secondary = 16 for 8 Ohms speaker load.

Darius
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