Continue shopping “5678 ELECTRON VACUUM TUBE VALVE TFK” has been added to your cart. Product Price Quantity Subtotal × 5678 ELECTRON VACUUM TUBE VALVE TFK $5.96 5678 ELECTRON VACUUM TUBE VALVE TFK quantity $5.96 Coupon: Apply coupon Update cart Cart totals Subtotal $5.96 Total $5.96 Proceed to checkout