Hi all can you help me with this project, I'm just a tube noob here.
Charlies line preamp with 6N8S instead of 6sn7s.
Is it a good tube within operating specs?
Looks like max voltage is 330.
Any help from the community would be greatly appreciated
Thanks in advance...... Robert
Charlies line preamp with 6N8S instead of 6sn7s.
Is it a good tube within operating specs?
Looks like max voltage is 330.
Any help from the community would be greatly appreciated
Thanks in advance...... Robert
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Welcome to tubes. Good luck with your build.
What kind of help do you need? In general you could use a 6N8S in a circuit calling for a 6SN7. I don’t recognize the circuit you posted; could you provide a link to the source?
What kind of help do you need? In general you could use a 6N8S in a circuit calling for a 6SN7. I don’t recognize the circuit you posted; could you provide a link to the source?
Trying to find the link here somewhere..
https://www.diyaudio.com/community/threads/which-6sn7-preamp-should-i-build.71813/post-2255192
https://www.diyaudio.com/community/threads/franks-6sn7-pre-regulated-supply.274356/post-4326897
https://www.diyaudio.com/community/...eamp-take-out-coupling-cap.91450/post-4396240
Just thought of using 6N8S instead of 6sn7
Just not for sure of 6N8S handling the 250 volt B+
Don't want it going up in smoke...lol
https://www.diyaudio.com/community/threads/which-6sn7-preamp-should-i-build.71813/post-2255192
https://www.diyaudio.com/community/threads/franks-6sn7-pre-regulated-supply.274356/post-4326897
https://www.diyaudio.com/community/...eamp-take-out-coupling-cap.91450/post-4396240
Just thought of using 6N8S instead of 6sn7
Just not for sure of 6N8S handling the 250 volt B+
Don't want it going up in smoke...lol
"Looks like max voltage is 330."
"Just not for sure of 6N8S handling the 250 volt B+"
330V specs is for plate voltage, not for +Ub. 250V +Ub is ok, also 500V is ok.
"Just not for sure of 6N8S handling the 250 volt B+"
330V specs is for plate voltage, not for +Ub. 250V +Ub is ok, also 500V is ok.
Good morning,
Thanks for the response.
I'm a little confused now. (not for +Ub)
So it will be fine right?
Artosalo is pointing out that the 330V on the data sheet is Ua (the maximum anode voltage), not the supply voltage Ub. In the circuit you wish to build the Ub would be only 250V, which is well below specs. Ua would be the voltage after the load resistor (47k), which would be even lower.
So, go ahead and build you preamp and enjoy it. I will work very well with 6N8S.
So, go ahead and build you preamp and enjoy it. I will work very well with 6N8S.
I Appreciate FrancoisG
Now I can build it with confidence in mind!
