PSVANE ART TIII KT88-TIII Vacuum Tube (2 PACK)

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Heater Voltage and Current

UH .......................................... 6.3 V
IH ........................................... 1.6 A

Maximum Ratings

Anode Voltage (Ua) ...................... 800 V
Second Grid Voltage (Ug2) ............. 600 V
First Grid Voltage (Ug1) .................. -200 V
Anode Dissipation Power (Pa) .......... 42 W
Second Grid Dissipation Power (Pg2) ... 8 W
Anode + Second Grid Dissipation Power ... 46 W
Cathode Current (Ik) ...................... 230 mA
Heater-to-Cathode Voltage (Uhk) ....... 200 V
Glass Envelope Temperature ............ 250 ℃

Grid 1 Resistance

• Self-Bias
  • 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

Inter-Electrode Capacitance

Static Parameters

Tetrode Mode

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 Mode

Ua.g2 ........................................... 250 V
Ia+g2 ........................................... 143 mA
Ug1 (approx) ................................... -15 V
Gm .............................................. 12 mA/V
ri ................................................. 670 Ω
μ .................................................. 8