PSVANE
Art KT88
39.9-399
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Filament Voltage
UH ............................................................... 6.3 V
IH ............................................................... 1.6 A
UH ............................................................... 6.3 V
IH ............................................................... 1.6 A
Maximum Ratings
Anode Voltage ................................................ 800 V
Second Grid Voltage ........................................ 600 V
First Grid Voltage ........................................... -200 V
Anode Dissipation Power .................................... 42 W
Second Grid Dissipation Power ........................... 8 W
Anode and Second Grid Dissipation Power ................ 46 W
Cathode Current ............................................. 230 mA
Heater to Cathode Voltage .................................. 200 V
Bulb Temperature ........................................... 250 °C
Anode Voltage ................................................ 800 V
Second Grid Voltage ........................................ 600 V
First Grid Voltage ........................................... -200 V
Anode Dissipation Power .................................... 42 W
Second Grid Dissipation Power ........................... 8 W
Anode and Second Grid Dissipation Power ................ 46 W
Cathode Current ............................................. 230 mA
Heater to Cathode Voltage .................................. 200 V
Bulb Temperature ........................................... 250 °C
First Grid Resistance
Self-biasing
--- ---Pa + Pg2 ≤ 35W .................................... 0.47 MΩ
--- ---Pa + Pg2 > 35W ................................... 0.27 MΩ
Self-biasing
--- ---Pa + Pg2 ≤ 35W .................................... 0.47 MΩ
--- ---Pa + Pg2 > 35W ................................... 0.27 MΩ
Fixed Bias
--- ---Pa + Pg2 ≤ 35W ................................... 0.22 MΩ
--- ---Pa + Pg2 > 35W .................................... 0.10 MΩ
--- ---Pa + Pg2 ≤ 35W ................................... 0.22 MΩ
--- ---Pa + Pg2 > 35W .................................... 0.10 MΩ
Inter-electrode Capacitance
Tetrode Connection Triode Connection
Input Capacitance .................................... 16 PF .................. 9.3 PF
Output Capacitance .................................. 12 PF ................. 17 PF
Cross Capacitance ..................................... 1.2 PF ................. 7.9 PF
Tetrode Connection Triode Connection
Input Capacitance .................................... 16 PF .................. 9.3 PF
Output Capacitance .................................. 12 PF ................. 17 PF
Cross Capacitance ..................................... 1.2 PF ................. 7.9 PF
Static Parameters
Tetrode Connection
Ua ...................................................... 250 V
Ug2 .................................................... 250 V
Ia ...................................................... 140 mA
Ig2 (approx) ........................................... 3 mA
Ug1 (approx) .......................................... -15 V
Gm ..................................................... 12 mA/V
ri ....................................................... 12 KΩ
μg1-g2 .................................................. 8
Tetrode Connection
Ua ...................................................... 250 V
Ug2 .................................................... 250 V
Ia ...................................................... 140 mA
Ig2 (approx) ........................................... 3 mA
Ug1 (approx) .......................................... -15 V
Gm ..................................................... 12 mA/V
ri ....................................................... 12 KΩ
μg1-g2 .................................................. 8
Triode Connection
Ua.g2 .................................................... 250 V
Ia+g2 ................................................... 143 mA
Ug1 (approx) .......................................... -15 V
Gm ..................................................... 12 mA/V
ri ....................................................... 670 Ω
μ ....................................................... 8
Ua.g2 .................................................... 250 V
Ia+g2 ................................................... 143 mA
Ug1 (approx) .......................................... -15 V
Gm ..................................................... 12 mA/V
ri ....................................................... 670 Ω
μ ....................................................... 8
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