Tubes, I built the Castanet with stock resistors, Hovland caps, a cryoed tube, and I have some teflon bypass caps to try later when I know it's settled in. The black paint is rubber undercoating type paint. Green? Well, I just really liked it. It's gorgeous in real life - the pics don't really capture it. I have the gold faceplate on the Chime, Jim uses the red on the Hagerman Audio. Hmm..blue ano panels for re-cladding the Cornet?
Matt