So what other hobbies to Mainlobbiers have. I like To go boating and fishing, etc. I also am very into DIYAudio. I'm starting to build another amplifier. It's a class A amp designed by Nelson Pass. It's great fun build the circuit, chassis, etc then pray first time you plug it in it doesn't leak all the smoke out, then adjust the bias and DC offset. I need to find a cheap hobby.