Changsha Shuguang Audio Ltd.

Changsha Shuguang Audio Ltd.

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Name: xiao hong
Tel: +86-0731-89745701
Fax: +86-0731-89998000
Mobile: +86-13975805576
E-mail: dxwdhx@aliyun.com
Add: Room 369,xingyao,Changsha City,Hunan Province,China ,hunan Province,China
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Shuguang 300BS-B (replacing 300BA 300B-98B) new vacuum tube

Shuguang 300BS-B (replacing 300BA 300B-98B) new vacuum tube Shuguang 300BS-B (replacing 300BA 300B-98B) new vacuum tube Shuguang 300BS-B (replacing 300BA 300B-98B) new vacuum tube
Product name:Shuguang 300BS-B (replacing 300BA 300B-98B) new vacuum tube
Item:SG-300BS-B
Price:118
Details:
 
about this tube 
     This price is for one tube.  Shuguang tube 300BC,300BA and 300B-98,300B-98B can be exchangable for use .They are closely matched and tested for noise. 
 

300B Series

Straight heating cathode middle power double tridoes used in the amplifing of A1. It is adapt to be used in audio frequency which needs the output power is 100W.
300B-C long-life design, use pure graphite anticathode and plate dissipation power can reach 60W. If you adjust the electrical route properly, single tube can amplify A1, and can get the higher output power than 20W.

 



limit rating
plate voltage………………480V
plate dissipation power…………40W
cathodecurrent
自partial voltage…………………100 mA
fixuppartial voltage………………70 mA

capacitance between poles
input capacitance……………………9PF
output capacitance……………………4.3PF
transroute capacitance……………………15PF

static state parameter
Ua…………………………300V
-Ug……………………… 60 V
Ia…………………………60mA
Gm…………………………5.5mA/V
Ri…………………………0.7 KΩ
μ…………………………3.85
Pout………………………6.6W

----------------Ug
---------Ua Uf(AC) Uf(DC) Ia
----------V --~V---- =V----mA
commend
parameter-----33 ---29.5 --77
---------200{ 45 --41.5 --20
---------------46-- 42.6-- 74
---------250 { 57 --53.6 --22
---------------60-- 56.5 --68
---------300 { 70-- 66.5-- 23
---------------86-- 82.5-- 68
---------400 { 98-- 94.5-- 19
limit
parameter450 100-- 96.5--- 60


 

filament heating
Uf(DC)……………………5V
If(DC) ……………… 1.2A

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