Changsha Shuguang Audio Ltd.

Changsha Shuguang Audio Ltd.

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Contact Us

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
MSN: shuguangs@hotmail.com Skype: shuguangtubes ҷϢ ҷϢ

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Products

Psvane new Hi-fi 845 vacuum tube

Psvane new  Hi-fi 845 vacuum tube
Product name:Psvane new Hi-fi 845 vacuum tube
Item:GZ-845
Price:$61.6
Details:

845


Straight heating thorium-tungsten cathode tridoes 845 can be used to amplify the power of A1 series and AB1 series. 845 is the same with UV-845, and can be exchanged each other.

 

filament heating
Uf …………………………10 V
If……………………………3.25 A

limit rating
plate voltage……………………1250 V
plate dissipation power………………75 W
maximum message input power………150 W
anticathodemaximumcurrent………………120 mA

capacitance between poles
input capacitance……………………6 PF
output capacitance……………………4.5 PF
transroute capacitance……………………14.5 PF

static state parameter:
Ua………………………1250 V
-Ug………………………200 V
Ia………………………80 mA
Gm ………………………3 mA/V
ri ………………………1.7 kΩ
μ………………………5
RL…………………………3.4 kΩ
üg(pk)……………………69 V
Pout………………………15 W

commend working state(reference value)
single tube A1 amplify
Ua……………………………1000 1000 1250 V
-Ug …………………………145 155 209 V
RL……………………………6 9 16 kΩ
Ia……………………………90 65 52 Ma
üg(pk)………………………- 110 148 V
ri……………………………1.7 1.9 2.1 kΩ
Gm……………………………3.1 - - mA/V
Pout…………………………24 21 24 W
Dtot…………………………5 - - %

 

driving AB1 amplify
Ua……………………………800 1000 1000 1250 V
-Ug……………………………125 170 175 225 V
RL……………………………4.5 4.6 4.6 6.6 kΩ
Ia……………………………80 70 40 40 mA
üg(pk)……………………177 240 - - V
Ia(max.sig)……………170 230 230 240 mA
Pout…………………………40 75 75 115 W

 

 

 

 

 
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