thank you julian for explanations !
problem is solve
on this
the adjustment is made for each tube
there is a resistance of 1 ohm cable for the measurement and
an adjustment potentiometer
Thanks
thanks Julian for your repply
I have 4 tubes and it’s write on 1:61mA/5.5(mA/v)
2:61mA/5.3(mA/V)
3:61mA/5.5(mA/V)
4:61mA/5.2(mA/V)
what it means?
the mA value should be different for each tube
how to calculate
the amplifier is a consonance M100Splus
Thanks