Digital power cord for tube amp?

In layman's terms, there is no such thing as digital power cord, heavy duty or otherwise.  Power cords convey AC (60Hz sine-wave and analog).

IMO, better to just focus on the sonic properties you’re looking for more than size, especially for lower power level components. 

Well some pc like my Shunyata Python VX contain FeSi for noise reduction. Just for kicks some years ago tried on preamp, not good. I assume all digital pc would have added shielding, may result in overly damped, darkened, veiled sound quality when used with non-digital equipment.

It will work fine if it can handle the requisite amperage.

Bye.

Lots of silly stuff follows.

Take a look at the Zavfino power cords - they are amazingly fast because they use UP-OCC copper - or even silver if oyu have the budget

They are well suited for digital components because of their dynamic performance, whihc is also due to their advanced cable geometry.

Hope that helps - Steve