Thanks I’ve ordered led’s and a few other bits too. I’ve removed the pre output cable but left the resistors and capacitors in place. Unfortunately the left channel cracks with blue flashes in the 6AS 7 valve and goes down atm. I switch off and back on after a minute and fiddle with the 6AS7 get a few more cracks sometimes then it’s back up. So maybe the electro capacitors I hope or maybe the valove.