Shuguang Treasure 300B-Z vacuum tubes Best Matched Pair 100% Brand new
The price is for a Best Matched Pair of Shuguang Treasure 300B-Z vacuum tubes.
If you buy 2pair(4 pcs), we will send the Factory Full Matched tubes to you.
Declaration
Shuguang Treasure 300B-Z is Directly heated cathode power transistor for Class A1 amplification
Using "High Polymer Compound Carbon (HPCC)" technology;
Using "Super Alloy " technology;
Improve the vacuum extraction technology, effectively improve the vacuum;
Gold gate, gold-plated pin, white porcelain seat;
Using new materials and processes
