upgrade the tubes for amp
Product Image Item Name- Price
VACUUM TUBE 6SL7 GT BRAND TUNG-SOL FOR willsenton R8/R300 AMPLIFIER

VACUUM TUBE 6SL7 GT BRAND TUNG-SOL FOR willsenton R8/R300 AMPLIFIER

Vacuum tube 6SL7 GT Brand TUNG-SOL FOR R8/R300 Amplifier100% Brand New the price is for single one there are two version: normal feet and Golden feet  
$106.79 USD$88.99 USD
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In Stock: 10
VACUUM TUBE 6SN7 GTB BRAND TUNG-SOL FOR Willsenton R8/R300 AMPLIFIER

VACUUM TUBE 6SN7 GTB BRAND TUNG-SOL FOR Willsenton R8/R300 AMPLIFIER

Vacuum tube 6SN7 GTB Brand TUNG-SOL FOR Willsenton R8/R300 AMPLIFIER 100% Brand New the price is for one matched pair
$169.57 USD$138.99 USD
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In Stock: 10
Best Match COSSOR 300B + TUNG-SOL 6SN7GT + TUNG-SOL 6SL7GT VACUUM TUBE upgraded FOR willsenton R300 AMPLIFIER

Best Match COSSOR 300B + TUNG-SOL 6SN7GT + TUNG-SOL 6SL7GT VACUUM TUBE upgraded FOR willsenton R300 AMPLIFIER

$569.99 USD$455.99 USD
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In Stock: 10
Best Match linlai KT88-D + PSVANE CV181-TII Collection + TUNG-SOL 6SL7GT VACUUM TUBE upgraded FOR Willsenton R8 AMPLIFIER

Best Match linlai KT88-D + PSVANE CV181-TII Collection + TUNG-SOL 6SL7GT VACUUM TUBE upgraded FOR Willsenton R8 AMPLIFIER

$820.41 USD$645.99 USD
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In Stock: 10