Changsha Shuguang Audio Ltd.

Changsha Shuguang Audio Ltd.

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Tel: +86-0731-89745701
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Products

Shuguang 5881A matched pair new (6L6GC,6L6GCR,350C,6P3P) vacuume tube

Shuguang 5881A matched pair new (6L6GC,6L6GCR,350C,6P3P) vacuume tube Shuguang 5881A matched pair new (6L6GC,6L6GCR,350C,6P3P) vacuume tube Shuguang 5881A matched pair new (6L6GC,6L6GCR,350C,6P3P) vacuume tube
Product name:Shuguang 5881A matched pair new (6L6GC,6L6GCR,350C,6P3P) vacuume tube
Item:SG-5881A
Price:$10.23
Details:
 
about this tube 
     The auction is for one tube.  Shuguang tubes 5881A can be exchangeable with 6L6GC,350C and 6P3P.

5881

Beam power tube 5881anticathode limite dissipation power is23W. In audio frequency amplifier, two tubes of A1 and AB1、AB2.5881also can be used in electron firm voltage electrical route.
5881 is the same with6L6G、6L6GA、6L6GB、6L6GC, and can be exchanged each other.

 


 

 


heater heating
UH …………………………6.3 V
IH…………………………0.9 V

limit rating
plate voltage……………………400 V
capacitance between grid No.2 and heater………………400 V
anticathode dissipation voltage………………23 W
second grid dissipation power…………3 W
heater voltage between cathodes……………±200 V
first grid resistance
when it is self-partial voltage ………………………0.5 MΩ
when it is fixup partial voltage……………………0.1 MΩ

interelectrode capacitances
input capacitance……………………11.5 PF
output capacitance……………………9.5 PF
transroute capacitance……………………0.9 PF

static state parameter

Ua…………………………250 V
Ug2…………………………250 V
-Ug1…………………………14 V
Ia……………………………72 mA
Ig2…………………………5 mA
Gm…………………………6 mA/V
ri…………………………22.5 kΩ
μg1-g2……………………6.2
Pout………………………6.5 W

 

 

 

commend working state(reference value)
single tube A1 amplify

limited ratings while A1 amplification
Ua(0)……………………300 V
Ug2………………………200 V
-Ug1(approx)……………12.5 V
RL…………………………4.5 kΩ
üg(pk)……………………12.5 V
Ia(0)……………………48 mA
Ia(max.sig)……………55 mA
Ig2(0) …………………2.5 mA
Ig2(max.sig) …………4.7 mA
Gm………………………5.3 mA/V
ri………………………35 kΩ
Pout……………………6.5 W
Dtot……………………11 %

limited ratings while A1 amplification
Ua.g2(0)………………300 V
-Ug1(approx)…………20 V
RL………………………4 kΩ
üg(pk)………………20 V
Ia+g2…………………78 V
Ia+g2(max.sig)……85 mA
Pout…………………1.8 W
Dtot…………………5.5 %
 

 

 
 

 

driving AB1 amplify
working state(value of two tubes)

 


Ua.g2(0)………………………400 V
-Ug1(approx)…………………45 V
Rl…………………………………4 kΩ
üg(g1-g1.pk)………………… 90 V
Ia+g2………………………… 65 mA
Ia(max.sig)…………………130 mA
Pout……………………………13.3 W
Dtot……………………………4.4 %

 

 

 

driving AB2 amplify
working state(value of two tubes)

 


Ua(0)………………………360 360 V
Ug2…………………………225 270 V
-Ug1(approx)……………18 22.5 V
Rl……………………………6 3.8 kΩ
üg(g1-g1.pk)…………… 36.7 50.9 V
Ia(0)……………………… 78 88 mA
Ia(max.sig)………………142 205 mA
Ig2(0)………………………3.5 5 mA
Ig2(max.sig)…………… 11 16 mA
Pout…………………………31 42 W
Dtot………………………… 2 2 %

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