6550 vacuum tube made by Tung-Sol - tetrode
6550 vacuum tube made by Tung-Sol. Copy of the original type 3 by Tung-Sol 6550 made in the 1960’s.
Always been known for their reliability and great tone. Dedicated to Hi-Fi and guitar amplifiers.
Tube socket octal.
When ordering a pair or it`s multiples, the tubes are matched free of charge in configurations: pair, quad, sextet or octet.