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Shuguang Treasure 300B-Z Electron Vacuum Tube Lamp Factory Test Matched Pair

Shuguang Treasure 300B-Z Electron Vacuum Tube Lamp Factory Test Matched Pair

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Model: Shuguang 300B-Z
Shipping Weight: 3.5Kg Product Quantity: 5 Units in Stock
$285.99USD

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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