Changsha Shuguang Audio Ltd.

Changsha Shuguang Audio Ltd.

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Shuguang 572B new Hi-Fi tube

Shuguang 572B new Hi-Fi tube Shuguang 572B new Hi-Fi tube Shuguang 572B new Hi-Fi tube
Product name:Shuguang 572B new Hi-Fi tube
Item:SG-572B
Price:$45.99
Details:
       about this tube 
     The auction is for one tube and they can be closely  matched.They are brand new tubes with excellent quality.All tubes come with a 12 months warranty from the date of your purchase.

572B


Straight heating cathode high μtridoes 572B can be used in wireless equipment to amplify surge and power.

 


Filament heating
Uf …………………………6.3 V
If…………………………4 A

limit rating
plate voltage…………………1250 V
maximum message anticathodecurrent……210 mA
plate dissipation power………………125 W
gridcurrent……………………50 mA

capacitance between poles
input capacitance……………………6 PF
output capacitance……………………0.9 PF
transroute capacitance……………………5.9 PF

static state parameter
Ua…………………………2000 V
-Ug…………………………2 V
Ia……………………………32 mA
μ(when Ia=20mA) ………190
RL…………………………7 kΩ
Pout………………………7 W

commend working state(reference value)
single tube A1 amplify(sinle end)
Ua………………………750 V
Ug………………………30 V
Ia(0)……………………130 mA
Ia(max.sig)……………210 mA
RL…………………………5 kΩ
Pout(when Dtot=5%)……40 W

driving AB2 amplify
Ua…………………………………1000 V
Ug…………………………………20 V
Ia(0)………………………………75 mA
Ia(max.sig)………………………300 mA
ü(g-g.pk)…………………………195 Vp-p
RL……………………………………8 kΩ
Pout(when Dtot=5%)………………150 W

 

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