You've got tubes with no cathode followers which indicates that
it is a high Z circuit. Use the 2.2K design, or the values from the
tables but multiply the resistors by 10, and divide the cap values
by 10 which will raise the impedance to 22K which is a good
match for tube circuits.
thanks, and sorry for the belated reply...rough weekend!
if i multiply and divide the components i come up with following for a 4db attenuation:
R1 = 22 K, C1 = .001
R2 = 35k, C2 = .01
is this correct?
would it be worth it to also build one with the original values to compare, or will the "multiplied" version be way better?