My friend and bandmate has a Fender Bassman LTD that he just put new power tubes into (6L6GCs). I know that these amps have a bias adjustment pot, but is there as bias test point on the PCB where I can use a simple multimeter to get a bias reading…like on the HR DeVilles? Does anyone know? If not, what’s the best way to adjust the bias? I hope it’s like the DeVille, that would be simplest… Thanks for your help!