Different people have different learning styles. I'm usually good at learning from books and on-line stuff. And that's what I've done with welding, but I should have done some classes. Mostly because there is someone that can look over your shoulder and critique your technique. Give you personal feedback that you don't get on-line.
As for machine, a 110 machine just isn't big enough for a lot of farm equipment repairs. I started with a Craftsman (by Century, I think) 110 flux core to patch a lawn mower deck and it's ok for light stuff. Then I bought a used Honda welder that's good up to about 130 amps DC mobile. And it'll power the flux machine. I think a 220 MIG/flux core like several have mentioned is the best single machine for all-around farm-type use. MIG for new metal shop jobs, and flux for field work. Be aware that the cheapest 110 flux machines are AC ouput and the flux process is supposed to be DC. There are several 220/110 multi-process machines out that get good reviews also. Another advantage of attending classes is you get to use different equipment and see what you like before buying.
Good luck.
As for machine, a 110 machine just isn't big enough for a lot of farm equipment repairs. I started with a Craftsman (by Century, I think) 110 flux core to patch a lawn mower deck and it's ok for light stuff. Then I bought a used Honda welder that's good up to about 130 amps DC mobile. And it'll power the flux machine. I think a 220 MIG/flux core like several have mentioned is the best single machine for all-around farm-type use. MIG for new metal shop jobs, and flux for field work. Be aware that the cheapest 110 flux machines are AC ouput and the flux process is supposed to be DC. There are several 220/110 multi-process machines out that get good reviews also. Another advantage of attending classes is you get to use different equipment and see what you like before buying.
Good luck.