Cheap And Discounts 1PC B8S 8Pin Ceramic Tube Socket Valve Tube Seat FU50R For FU50 FU-50 5Z8P 5Z9P Vacuum Tube Amplifier Audio Vintage HIFI DIY Wholesale. Buy Directly From Merchant Molly Electronics Store Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.