Check out the Audio Research Documents page. They have biasing instructions for most all their classic amps. Usually, although there are exceptions, all you need is a small insulated screwdriver, a meter that can read millivolts and the restraint to keep one hand in your pocket when the amp is live. For the most part biasing is setting the standing current for the output tubes by measuring the voltage across two points while adjusting a pot with the screwdriver.
Usually you bias after the initial tube install and then after an hour or so of warmup. The manufacturer will have recommended bias values. Run it for a week or two and repeat. After that you should be good checking it every few months. You see a deviation your not comfortable with its time to look into new tubes.
Self biasing is for people who'd buy a self driving sports car. I get the convenience and all but why even bother when you can get a mini van.
Nothing against people who like mini vans or have to have one. You're just looking to get from A to B with minimum fuss. I guess like self biasing. Just not as involving to me.
Usually you bias after the initial tube install and then after an hour or so of warmup. The manufacturer will have recommended bias values. Run it for a week or two and repeat. After that you should be good checking it every few months. You see a deviation your not comfortable with its time to look into new tubes.
Self biasing is for people who'd buy a self driving sports car. I get the convenience and all but why even bother when you can get a mini van.
Nothing against people who like mini vans or have to have one. You're just looking to get from A to B with minimum fuss. I guess like self biasing. Just not as involving to me.