2pcs JYL 300B-TR Treasure Vaccum Tube Matched Pair Replace 300B-98,300B-T,300B-Z,WE300B   

• The anode is coated with Crystalline carbon that can withstand higher  temperatures.
• The anode size is larger than the ordinary 300B, so it can withstand more power, can withstand power up to 45W.
• In the following suggested working point, The sound quality of the product is in excellent condition：
• Anode voltage: 400V
• Anode current: 80mA