6P3S-E = 6L6 = 6L6GT = 6L6GC = 5881 tube. Output tetrode. Reflector plant Audio Radio Tube

6P3S-E are equivalent to 6L6 = 6L6GT = 6L6GC. Soviets cloned these several decades ago. The tubes are NOS (New Old Stock), rather vintage but in an excellent electric condition. General characteristics: Filament voltage, Volt: 6.3Anode voltage, Volt: 2501st grid voltage, Volt: -142nd grid voltage, Volt: 250Filament (heater) current, mA: 880±40Anode current, mA: 73±132nd grid current, mA: no more than 61st grid reverse current, mkA: 0.5Cathode current, mA: -Output power, W: no less than 5.8Mutual conductance, mA/V: 5.2 to 6.8Internal resistance, kOm: no more than 65Inter electrode capacitance, pF:: - input: 11- output: 6.7- transfer: no more than 1Operation time, h: over 5000 Limited operating values: Filament voltage, V: 6-6.6Anode voltage, V: 2502nd grid voltage, V: 250Cathode - heater voltage, V: 90 / -200Cathode current, mA: 90Anode dissipation, W: 20.52nd grid dissipation, W: 2Resistance in 1st grid circuit, kOm: 150 Operating environmental conditions : Acceleration of vibration loads, g: 3- by frequencies, Hz: 5 to 300Acceleration of multiple impacts, g: 12Acceleration of single impact, g: 100Continuos acceleration, g: 100Ambient temperature, °C: -60 to +160Relative humidity at up to 40°C, %: 98