Sixtonoize New member Dec 9, 2009 #1 Which position should I put the Bias switch in my VH-4 for installing 6550s? I'm assuming the EL34 position, but I want to be sure. Thanks.
Which position should I put the Bias switch in my VH-4 for installing 6550s? I'm assuming the EL34 position, but I want to be sure. Thanks.