Heres one of mine with anti vibration mounting ,
The tube itself is in a grommet which is held down to the veroboard with the copper wire ,
The grid of the tube goes around to the other side of the board , Ive used insulated stranded wire with kevlar to connect the tube to the XLR pins , The whole tube sub assembly floats inside the housing , Its fairly effective in terms of acoustically isolating the tube ,but vero isnt the best insulator . A small slab of PTFE drilled and riveted as required might be better .
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