Can't get 5D8 Twin PI to balance!

[harry]

Hi all,

I am trying to build an amp based around the 5D8 power amp section.

http://bradovka.com/wurlitzer/twin_5d8_schem.gif

I have tried adjusting the divider, adding a coupling cap to the bottom triode's cathode, using different plate resistors, all to no avail.

Anode 1 puts out some 65V peak onto the power tube grids before clipping, anode 2 manages just 45-50V.

Does the design mean that they are never going to balance? Clipping is very asymmetrical at present.

[loudthud]

Do you have the 270K as the grid leak on the bottom 6L6?