filament rails

[resident]

Is there any hum problem if the ac filament rails are very close to the star ground?
Something like this in foto.

 

[SY]

If you keep the AC wires tightly twisted, that will minimize any noise pickup problem. If you're really worried, get a few inches of braided tube, slip it over the filament run near the star ground, then ground it.

 

[resident]

Thanks SY

I have twisted them very tight.

If you're really worried, get a few inches of braided tube, slip it over the filament run near the star ground, then ground it.

I was thinking to try with aluminium tape.
Hope I'll not have hum problems.