Cheap And Discounts 5pcs Plastic Tube Socket 9 Pin PCB Mount B9A Base 12AX7 6DJ8 ECC82 B329 for Tube Amplifier Wholesale. Buy Directly From Merchant K&D Industrial Co., Ltd.. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.