Psvane Shuguang 300B-Z/2 Black Treasure - Matched Pair | HiFi Triodes, Transmitting Tubes

 

Shuguang Black Treasure 300B-Z PREMUIM GRADE A - Factory Matched Pair

get shipped as factory matched pair

 

The Black Treasure 300B-Z  got improved in structure for better dependability and safe shipping:

Gold coated pins to enhance connection over long term

High Polymer Compound Carbon (HPCC) coating is for the first time used on vacuum tube production. Compared to traditional carbon spray technology, HPCC coating will allow greater concentration of electrons, enhance and maintain stability of the electron flow, maximize "secondary electron emission surpression" from the glass enclosure, in turn reduce effects of electron swirl which generates internal noises from the vacuum tube itself

All parts are selected to the highest grade plus only highly experienced workers to assemble

Suggested burn-in time is 80-150 hours

selected for PREMIUM GRADE A quality and matched at factory (the lower budget grade B = "regular" version is not offered nor sold by TAD)