Cheap And Discounts (1PCS) new imported original 2SA1930 2SC5171 A1930 C5171 audio pairing tube directly inserted into TO-220F-3 Wholesale. Buy Directly From Merchant JIAPENGSHENG Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.