I have now made a new "version" which i will run at 8mA, (470R=R4=R6 and R3=7.1K) and i will settle with that, since it that will probably be the best way, without adding to much distortion.
Anyway, i have another question.. for R3 i will use 6.8K + 300R resistor to get 7.2K, if i want to lower the gain, wouldn't it be possible to take the signal out between these, instead of right above the valve? with that simulation i get approx +18dB (instead of 22.2dB).
Will there be any negative effect by doing this?
Anyway, i have another question.. for R3 i will use 6.8K + 300R resistor to get 7.2K, if i want to lower the gain, wouldn't it be possible to take the signal out between these, instead of right above the valve? with that simulation i get approx +18dB (instead of 22.2dB).
Will there be any negative effect by doing this?
Will there be any negative effect by doing this?
Most likely it will raise the output impedance.
Cheers
Ian
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