MAXIMUM RATINGS
DC plate voltage DC plate voltage, pulsed Grid2(screen) DC voltage DC cathode current Plate dissipation Grid2 DC screen dissipation Typical Operation Audio Amplifier, Class A1 (single tube) DC plate voltage Grid2(screen) DC voltage Grid1(control) voltage Peak grid drive Zero signal plate current Max signal plate current Effective load resistance Distortion at 1 watt into 8 ohms Output power at 5% distortion Max 6.9 18,000 8,000 V A μS Ω 25 pF 2.5 pF 900 8,000 300 500 35 7 V V V mA W W 500 280 -82 50 70 100 1,650 0.9 14 V V V VP-P mA mA Ω % W