They can't be Ruby Golds can they? I bought this amp a year or so ago, and that's what are in it. It's been idle since I got my Freidman so I thought it would be a good time to possibly re-cap it if necessary. Other than replacing a preamp tube and noticing the output tube were JJ's, I was not expecting to see a non- Marshall branded part and the guy I got it from didn't know if anything had been done to it. Just curious. It's one of the handwired RI's if that means anything.