The new tube rectifier tube socket and PCB kit might help you out in your next project. The board is small, 2 by 2 inch, that has been designed to hold a single ceramic octal tube socket and a two resistors. Many like to see tubes protrude from the chassis top panel, like missiles leaving their silos. These boards help make that possible. Each PCB comes with a ceramic tube socket and four sets of aluminum hex standoffs (0.75in) and rubber O-rings and screws. The PCB materiel is thick (0.93in) and tough (2 oz copper traces), so there is no chance that it will bend, as the tube is pulled from or pushed into its socket. Two resistors are used on the PCB, as is required by most tube rectifiers when working directly into a reservoir capacitor. These resistors limit the peak current into the capacitor, protecting the rectifier from damage.
Designed to work with tube rectifiers, such as the 5R4, 5Y3 or 5AR4/GZ34. Kits include PCB, eight rubber O-rings, eight screws, one ceramic tube socket, and one Heyco black-plastic 1.75 inch hole snap bushing, which converts raw-edged holes to smooth, neat holes.