Changsha Shuguang Audio Ltd.

Changsha Shuguang Audio Ltd.

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Shuguang GEKT88(replacing KT88-98) new Hi-Fi tube

Shuguang GEKT88(replacing KT88-98) new Hi-Fi tube
Product name:Shuguang GEKT88(replacing KT88-98) new Hi-Fi tube
Item:SG-GEKT88
Price:$35.42
Details:
 
about this tube 
     The auction is for one tube.

heater heating
UH………… 6.3 V
IH………… 1.6 A

limit rating
plate voltage……………… 800 800 800 800 V
second grid voltage………… 600 600 600 600 V

first grid voltage…………-200 -200 -200 -200 V
plate dissipation power………… 42 45 35 40 W
second grid dissipation power…… 8 8 6 6 W
anticathode plus second grid dissipation power………………………………………………… 46 49 40 45 W
cathode current……………… 230 230 230 230 mA
heater voltage between cathodes……… 200 200 250 250 V
temperature of glass crust…………… 250 250 250 250 C

first grid resistance
when it is self-partial voltage
--- --- Pa + Pg2≤ 35W 0.47 MΩ
--- --- Pa +Pg2 > 35W 0.27 MΩ
when it is fixup partial voltage
--- --- Pa +Pg2≤35W 0.22 MΩ
--- --- Pa +Pg2> 35W 0.10 MΩ

capacitance between poles
--- - - --quadrode connect way Tridoes connect way
input capacitance……… 16--- - 9.3 PF
output capacitance……… 12 --- - 17 PF
transroute capacitance……… 1.2 ----7.9 PF


 

 

  static state parameter

quadrode connect way

Ua…………………250V
Ug2……………… 250V
a………………… 140mA
Ig2(approx)…… 3mA
-Ug1(approx)……15V
Gm………………… 12mA/V
ri …………………12KΩ
μg1-g2…………… 8

Tridoes connect way
Ua.g2……………250V
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