Vt40 bias problem, redplating output tubes

[g1]

C18 and C19 are a stacked arrangement. Whichever one has the 603V at it's (+) end should have about 300V at it's (-) end.

[Helmholtz]

I meant that C15 should be a 600V cap, making it rather big at 1µ.

[g1]

I meant that C15 should be a 600V cap, making it rather big at 1µ.

It's supposed to be .047, he replaced with 0.1uF. Will probably shift the bias voltage a bit more negative than with the .047

[Helmholtz]

It's supposed to be .047, he replaced with 0.1uF. Will probably shift the bias voltage a bit more negative than with the .047

You're right. As so often I missed the decimal point before the number. What a bad habit to omit the zero before the decimal point.
No one would do this over here, so it's not something I am used to.

But my main point was that this voltage dropper cap needs to be sufficiently rated as it sees large peaks voltage.
Additionally there are high mains transients every now and then, that's why X-rated caps are tested at 2kV or so.