HiFi Kit Building- have you ever built any hifi gear?

I started with a Heathkit multiband radio, then I built almost everything David Hafler kit and the last kit I built was the Dynaco Stereo 400 with the meters (of course).

I built the CSS 1TDX and 2TDX speaker kits.  They have a lot of bang for the buck, and it was fun.

Indeed.  Just completed a Troels Gravesen designed, 3 way Scanspeak speaker set.  They sit next to a component rack i built with the system IC loom and speaker cables based on designs by @williewonka here on AG.  

I did 4 years of machine shop in high-school and was raised by a nuc physics who made me build alot.nothing explosive although he did operation red wing but just could not tell us about it. All those experiences have helped me in the wee hours of the morning bending titanium plates to put together people who went to teton national park and yellowstone that played too close to wild animals.and yes tube amps ,computers,speakers,cars all from scratch. Enjoy the science and keep away from critters.