Check the listing for details. 2x Gold PCB Pin Ceramic Tube Sockets - 7 pin. Condition: New. Listed at 4.50 USD. GZC7-Y-GCeramic 7-pin tube socket, PCB-mount, Gold-plated pins NOTE: Price is for 1 Pair (Qty. 2) These are the same tube sockets used in many of Beezar Audio headphone amplifier designs and others - the Millett Hybrid, Millett Hybrid MAX, Millett Hybrid MiniMAX, Millett Hybrid MOSFET-MAX, Starving Student, the Beezar/ECP Audio Torpedo I (T1) and many, many others. Check out DIYForums.org for many of the designs mentioned above. It takes some skill and careful handling, but you can drill out and remove the center rivet on these sockets. After gluing back together the two halves, you can then easily place a 3mm LED in the center to light your vacuum tubes. This is detailed in many of the designs on DIYForums.org. USA Seller and in-house stock!! (Beezar Audio)