B9A chassis mount socket with copper coloured skirt. Fits EL84, 12AX7 and many other types.
B9A PCB MOUNT VALVE BASE SOCKET NOS X1PC
B9A CINCH CHASSIS MOUNTING VALVE TUBE BASE
McMurdo B9A Noval Vintage Valve Base - 1 Piece
SCHAFFNER FN2030-20-08 power line filter chassis mount 250v 20A 1Stage
Efficient 12V Peltier Cooling Module - Chassis Mount Heatsink for Semiconductors
TS-9 socket saver for B9A valve base ECC83 12AU7 EL84