KEL 84 power transformer replacement

[Paul Barker]

Originally Posted by snowman_al

No 3 Amps is not enough. Looked at the valve spec sheets?
EL84 draws 0.76A each and the ECF80 0.43A each, so a total of 3.9A minimum.

With the existing transformer, is it quiet(er) if you remove the mounting bolts and rest it on rubber pads? Are the insulating washers present on the mounting bolts? Is it the end bell vibration, remove it and see if it is quieter? Is it still noisy with the valves removed?

I had to put plastic shims between the core and end bell and rubber mount the transformer to get my transformer quiet. See here

Nice photo record of a good job done.