Built myself a retro signal tracer for tube radios

[maxhifi]

I keep looking at this thread, and can't keep my mouth shut any longer

1. Beautiful job on the cabinet

2. Awesome metal work

3. Why did you use a hot chassis? This thing could kill someone, and an isolation transformer capable of powering it is cheap, i.e. $20 at digikey or mouser. It would also prevent ground loop/hum issues during use, and make it a more useful test instrument.