In class A you can bias at 100% of the plate dissipation
A 6v6 has a plate dissipation of 12W
If you have the plate voltage and the current, you have the power dissipation :
P = U * I
So You must check the plate voltage, because 45mA at 300V or à 100V isn't not the same plate dissipation
Try to bias at 100% of your plate dissipation,a nd tell me how you feel the sound.
Problems with G5 Amp
- McColson
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- Frank
- G5 bidouilleur
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- Enregistré le : 18 sept. 2006, 2:00
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Okay, I knew Mr Ohm I´ll try it, but i´m a bit scary about tweaking the tube to 100%. In the tubesheets they are talking about 250V and 45mA in class A. So i didn´t know what to doMcColson a écrit :In class A you can bias at 100% of the plate dissipation
A 6v6 has a plate dissipation of 12W
If you have the plate voltage and the current, you have the power dissipation :
P = U * I
So You must check the plate voltage, because 45mA at 300V or à 100V isn't not the same plate dissipation
Try to bias at 100% of your plate dissipation,a nd tell me how you feel the sound.
Regards,
Frank
- McColson
- Admin du site
- Messages : 7879
- Enregistré le : 07 nov. 2004, 1:00
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250 *0.045 = 11.25W so very near the maximum plate dissipation !Frank a écrit :Okay, I knew Mr Ohm I´ll try it, but i´m a bit scary about tweaking the tube to 100%. In the tubesheets they are talking about 250V and 45mA in class A. So i didn´t know what to doMcColson a écrit :In class A you can bias at 100% of the plate dissipation
A 6v6 has a plate dissipation of 12W
If you have the plate voltage and the current, you have the power dissipation :
P = U * I
So You must check the plate voltage, because 45mA at 300V or à 100V isn't not the same plate dissipation
Try to bias at 100% of your plate dissipation,a nd tell me how you feel the sound.
Regards,
Frank
Don't worry to bias your tube at 100% in class A single ended, it's very standard.
Enjoy !
..:: Veuillez consulter les règles du forum ::..
- Frank
- G5 bidouilleur
- Messages : 23
- Enregistré le : 18 sept. 2006, 2:00
- Localisation : Dueren,Germany
Okay you win !250 *0.045 = 11.25W so very near the maximum plate dissipation !
Don't worry to bias your tube at 100% in class A single ended, it's very standard.
Enjoy !
I´m now at 93% "taux de bias" and it sounds great!
Thanks for your help, i think i don´t change anything to this Amp now!
Now I´m going to build a case for it, but first i need a speaker...
Regards,
Frank