Vacuum Tube Psvane HiFi KT88 1 pair#

• Factory matched pair - 2 tubes.
• Typ: KT88 - beam power tethrode
• Manufacturer: Psvane Audio Lab. CHANGSHA HENGYANG ELECTRON CO, LTD
• Series: Psvane HiFi

Description#

KT88 is a beam power tetreode, its anode limited dissipation power is 42W. In the audio amplifier, the power can be 100W when it is used as push-pull class AB1 with double tubes, it can also be used in electronic voltage regulator circuit. KT88 is similar with CV5220 and 6550,they can be replaced by each other.

Charts

Parameters

Heater
Uf: 6.3 V
If: 1.6 A

Maximum Rating
Ua   : 800 V 
Ug2  : 600 V 
Ug1  : -200 V 
Pa   : 42 W 
Pg2  : 8 W 
Ua+g2: 46 W 
Ik   : 230 mA 
Uh-k : 200 V 
Tbulb: 250 C

 Direct Interelectrode Capacitances
triode connection and tetrode connection
input: 16 9.3 PF 
output: 12 17PF 
grid to plate: 1.2 7.9 PF


Static  parameter
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 
Ug1-g2: 8


Static  parameter 
triode connection：
Ua.g2: 250 V 
Ia+g2: 143 mA 
-Ug1(approx): 15 V 
Gm: 12 mA/V
ri…………………670Ω
μ………………… 8