Milled aluminium case for my W6PQL 70MHz LPF. Thirty-three threaded holes in all, M3/M4/M5. Connectors are Jyebao, bronze finish. They seem just as good as Amphenol, maybe not quite in the league of Radiall, but entirely OK at these frequencies and 300W or so at 50MHz and 160W at 70MHz. Don’t expect to have any cooling issues at those power levels. The forward and reverse power sensors connect via 3nF 4.2mm feedthru caps.