Svetlana Matched Quad

GOLD-Plated molybdenum alloy grid and Carbon coated screen grid makes this one of the best, most reliable, efficient, and classic sounding 6L6s Very deep and rich sounding classic.

PLATINUM MATCHED   Consistent, solid and reliable. The construction of gold-plated molybdenum alloy grid, carbon-coated screen grid makes it one of the best current production 6550 on the market...

Consistent, solid and reliable. The construction of gold-plated molybdenum alloy grid, carbon-coated screen grid makes it one of the best current production 6550 on the market. Audio Research uses...

Reminiscent to Genalex KT88 Gold Lion. Gold-plated molybdenum alloy grid and carbon-coated screen grid for power. This KT88 also substitutes most 6550s’ It provides a more pronounced bass and is a...