Having used the socket method as well as having owned a Ken Light and now a Giraud annealer, I'd have to say I'm very skeptical that a person can get a consistent annealing job done with anything other than a machine. Sure, you can anneal brass with a torch and a wooden skewer like Varmint Al relates. But to get brass the same temp for the same time, I don't believe it's doable. I suspect that is why many people find that the first firing after annealing doesn't produce consistent brass. Also, while we're talking about annealing, there is no value in putting cases in water. All it does is get them wet. Annealing stops the instant you remove the heat and if you get a case neck hot enough to damage the base, you've gone far past the point of no return anyway. And FWIW- the color one gets has nothing to do with temp. A dirty or tarnished case won't show blue. A clean shiny case usually will, but not necessarily at the temp you want. The one that wears me out is the wet brain that thinks he can hold the case in his fingers and drop it in water when it reaches the correct temp.....give me a break.
Rick