I need a new output transformer for my 1974 Fender Vibrolux Reverb! Which company you can recommend? Mercury? Hammond? ... I want to get as close as possible to the original Sound!!! Is a Mercury Transformer the best decision? Are they really very close to the original? I'M GRATEFUL FOR ANY HELP !!! THANKS!!!! ps if someone has an original 74' Vibrolux output transformer - i will buy it!!!