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- Jul 15, 2008
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So far there's been no reply in the main thread in diyaudio so I bring the question over here. Hope someone can enlighten this for me.
http://www.diyaudio.com/forums/group-buys/156149-tube-i-zator-professional-pcb.html
In short I'm sourcing parts and I'm not sure which value for the Rk I should pick. Lampizator said he chose 39R, while someone I know who built the DAC-end with similar output stage told me to go with 100R. But what I really want know is based on what formula or equation can you get the correct value?
My DAC is the Buffalo es9008, in the manual it says that
Quote:
I'm thinking about picking the 6n2p or the 12ax7.
Thanks for reading.
http://www.diyaudio.com/forums/group-buys/156149-tube-i-zator-professional-pcb.html
In short I'm sourcing parts and I'm not sure which value for the Rk I should pick. Lampizator said he chose 39R, while someone I know who built the DAC-end with similar output stage told me to go with 100R. But what I really want know is based on what formula or equation can you get the correct value?
My DAC is the Buffalo es9008, in the manual it says that
Quote:
The differential output of the buffalo is 0.924*1.65V (3.1746 Peak) + 1.65 DC bias and the series output resistance is nominally 195 Ohms at each output.
I'm thinking about picking the 6n2p or the 12ax7.
Thanks for reading.