PSVANE Acme Serie AKT88 High-end Vacuum Tube Matched Quad(4)

PSVANE ACME KT88 AKT88 Vacuum Tube

HEATER
UH-----------------6.3 V
IH------------------1.6 A

MAXIMUM RATING RATING MAXIMUM
Ua---------------------------- 800 800 V
Ug2-------------------------- 600 600 V
Ug1-------------------------- 200 -200 V
Pa---------------------------- 42 35 V
Pg2-------------------------- 8 6 W
Pa+Pg2--------------------- 46 40 W
Ik---------------------------- 230 230 mA
Uhk------------------------- 200 250 V
Tglass shell------------------- 250 250 ℃
Rg1
Cathode 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
CAPACITANCES
Pentode connection Triode connection
Cin---------------16 9.3 PF
Cout-------------12 17 PF
Cg-a-------------1.2 7.9 PF

CHARACTERISTICS
Pentode 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