KT88HJ Power Tubes

Our KT88-HJ tubes are designed to have the distinctive warm British sound yet not losing the typical KT88 feel. Experience the tone quality you have been missing and the unmatched quality only H.J. Tubes can deliver.

 KT88-HJ is beam power tetrode ,anode limited dissipation power is 42 watt, the output power is 100 watt

Feature Gold plated pins

Ceramic base

Sold as matched pair （2 Tubes per order）

Heater
UH………… 6.3 V
IH………… 1.6 A
Maximum Rating
————- –KT94 KT100 KT94 KT100
Ua……………… 800 800 800 800 V
Ug2………… 600 600 600 600 V
Ug1…………-200 -200 -200 -200 V
Pa………… 42 45 35 40 W
Pg2…… 8 8 6 6 W
Pa+g2… 46 49 40 45 W
Ik……………… 230 230 230 230 mA
Uh-k……… 200 200 250 250 V
Tbulb……………… 250 250 250 250 C
Rg1
with cathode bias
— —Pa + Pg2≤ 35W 0.47 MΩ
— —Pa +Pg2 > 35W 0.27 MΩ
with fixed bias
— —Pa +Pg2≤35W 0.22 MΩ
— —Pa +Pg2> 35W 0.10 MΩ

Direct Interelectrode Capacitances

— – – –triode connection and tetrode connection
input……… 16— -9.3 PF
output……… 12 — -17 PF
grid to plate……… 1.2 —-7.9 P

Static parameter

tetrode connection
Ua…………………250V
Ug2……………… 250V
a………………… 140mA
Ig2(approx)…… 3mA
-Ug1(approx)……15V
Gm………………… 12mA/V
ri …………………12KΩ
μg1-g2…………… 8
triode connection
Ua.g2……………250V
Ia+g2……………143mA
-Ug1(approx)… 15V
Gm…………………12mA/V
ri…………………670Ω
μ………………… 8