Datasheet

Straight heating cathode high μ triodes 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