express VVR1?

[parksangil]

http://yeomansinstruments.blogspot.com/ ... -ever.html

This VVR schematic applies to EXPRESS is that possible?

my EXP EL34 40W

thanks in advence.

[UR12]

NO That won't work because the Express is fixed bias and the circuit you posted is for cathode bias.

[parksangil]

Then apply only VVR3 is possible?

I do not get the schematic of it.

This is sometimes difficult to purchase raseo Asia.

I'm sorry ,Not only a little English.

[parksangil]

Schematic of the public VVR3 there?

[soma_hero]

the shematic isn't public, you would need to purchase a board from Dana (UR12) but I don't know if he still sells them...