Reverberocket II specific part question...

[Alenaun66]

Hi, I recently purchased a Reverberocket II (1966) in close to mint condition. The only issue with it is related to the intensity of the tremolo. I was told that the tech who looked into it that the transformer modulator TM-1 had to be change.

I just can't find this part anywhere on the web.

Does anyone know where could I find it or what can I replace this one with?

Thanks