New Plate Current Matched Pair of Tung-Sol 6550 (KT88) Coke Bottle Reissue Vacuum Tubes. Will work in place of: 6550, KT88, 6550A. In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain.
New Plate Current Matched Pair of Tung-Sol 6550 (KT88) Coke Bottle Reissue Vacuum Tubes. Will work in place of: 6550, KT88, 6550A. In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain.