KEL 84 power transformer replacement

[Audiophill]

Hi all, my power transformer is really noisy and notice it more since I got got rid of the source hum, I have tried tightening the lamination bolts but noting changes, also tried some small rubber grommets under it but still noisy, I think I have found a replacement transformer but the heater supply is only 3 amp and it shows 5 amp on the schematic, would 3 amp be enough?
Many thanks
Phill