2Pcs Matched Pair Shuguang 300B-98 Vacuum Tube Replace 300B 300BC 300BS 300B-T

2Pcs Matched Pair Shuguang 300B-98 Vacuum Tube Replace 300BC 300BS 300B-T Item Details Features: Shuguang, China’s oldest and largest manufacturer of vacuum tubes has been in business since 1958. In 1983, Shuguang partnered with western firm LG. As of 2005 Shuguang had developed 120 types of vacuum tubes, and manufactured over 70 million units. A notable fact: Shuguang has produced eighty percent of 300B tubes ever made. Suggested burn-in time 150-300 hours. Most changes happen in the first 150 hours. Please check if it is in good condition before you sign！ Warranty All tubes is supply with a 1 year product warranty. Package Included: 2 pcs × Shuguang 300B-98 Vacuum Tube(Matched pair) If you want to buy quad matched, you can direct buy 2 pairs and leave a massage to us(Please quad matched). Payment Refund & Warranty Delivery details Delivery time Contact us Payment We accept payment via Paypal only. Please contact us if you have any questions. Refund & Warranty * 30 Days for exchange or money back from the date you get the item. * If you are not satisfied with the product you received, please don’t use it, and return to us within 30 days. * If you find the package is broken, please refuse to sign, then it will be returned to us. * One year warranty, if there quality problems caused by by non-artificial reason, the company replacement, a one year warranty. Delivery details * Orders processed within 24-48 hours of payment verification ( from Monday to Friday, excpet holidays) * All packages will be shipped out in Securely packaged boxes to make sure it is in good condition. * If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! Delivery time * For USA buyer: 7-15 Working Days, free shipping via SpeedPAK ; 3-5 Working Days via Expedited Int’l Shipping. (Extra Shipping Cost 20USD ) * For Other Countries buyer: 15-35 Working Days (depends on custom), free shipping Via SpeedPAK with tracking number. 3-7 Working Days via Expedited Int’l Shipping. (Extra Shipping Cost 20USD) Contact us * We welcome all e-mails, and happily respond to every e-mail we receive, usuallywithin 24 hours. For fastest reply, please contact us through Ebay messages. * Your positive feedback is important to us.positive feedback is important to us. * We have an excellent team to support our customer service. Please feel free to contact us if you have any questions. Type Preamp Tubes Brand SHUGUANG Bundle Listing Yes MPN Does Not Apply Country/Region of Manufacture China