TUNG-SOL 6550 Power Tubes (Quad Matched)

TUNG-SOL 6550 (Quad Matched)

Premium high-power Octal Beam Tetrode, among the finest in current production. Copy of the original Type 3 triple getter version popular in the 1960's. Powerful, balanced and detailed soundstage.

Its gold-plated grill and charred screen help to prevent grid emissions & runaway bias. Similarly, the plates have increased  voltage & dissipation compared to its counterparts, increasing performance and reliability.

This model is equivalent to the references 12E13 KT88 7D11 CV5220, tubes. However, it differs from the latter by providing higher maximum screen power. Its robust design for extended life and improved performance make this tube excellent replacement.