You can get in touch with your local IATSE union alot of jobs go through the union. The few techs/roadies that work full time in my area are in the union and they pretty much do local support for big tours that come through and festivals. There are a few that do drum teching. and a few of the local guys I know go out on the road a few times a year on bigger tours.
http://www.iatse-intl.org/home.html
Another way to get a job doing teching is to look for cartage or music rental companies in your area. You can get a job with them and you will usually go set up rental kits in all different kinds of situations. Most major cities have one of these, some like los angeles and nashville have tons of companies that do this. You will probably end up setting up all kinds of gear though, not just drums. I have found that most of these guys that work for these companies don't really know alot about drums, they are usually speaker/technical/electrical types, so if you know drums you will be an asset.
I know one other drum tech in town who actually is a studio technician. He gets paid alot to come set up and tune drums in the studio. He has a good relationship with the biggest studio in town and knows all the producers. He has several kits and lots of snares that he rents out to clients and comes in and sets up the drums, tunes them, etc. There are a few companies in nashville that do this kind of work, I imagine los angeles and new york too.
as far as electronics go you need to learn them. If your goal is to be a tech for a top touring drummer you will be responsible for setting up all kinds of gear like triggers, electronic drumsets, sequencers, samplers, midi, click tracks, etc. You might even be asked to design a click track set up for the band. as far as mics go you need to know these things too. You have to be able to talk the talk and also address concerns and be the expert.
You also need to be able to perform any repairs related to drums and hardware that might need to be performed.
There is nothing a drum tech does that can't be learned through experience, but if you want to go to school for it I would suggest going to a recording school, or a live sound class. From what I have seen the high-dollar programs are generally a rip-off and you can get just as much information out of community college programs.
I know two succesful studio owners that got their start being the top students in a community college program, and then got internships at a major recording studio.
