The Svetlana™ KT88 is a glass envelope beam power tetrode. It is intended for audio frequency power amplification service. New In the Box * No longer available for export MFR: Svetlana, Russia SKU: KT88-SVET-MQ
Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter New old stock * No longer available for export. MFR: RCA SKU: 6SL7GT-COAT-RCA
Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter New old stock * No longer available for export. MFR: RCA SKU: 6SL7GT-BRN-RCA
Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter New old stock * No longer available for export. MFR: RCA SKU: 6SL7GT-BRN-RCA
Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter New old stock * No longer available for export. MFR: RCA SKU: 6SL7GT-CB-BP-RCA
Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter New old stock * No longer available for export. MFR: Realistic SKU: 6SL7GT-REAL