572B
Straight heating cathode high μ Tridoes 572B can be used in wireless equipment to amplify surge and power.
Filament heating
Uf: 6.3 V
If: 4 A
Limit rating
Plate voltage1250 V
Maximum message anticathodecurrent210 mA
Plate dissipation power125 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
RL: 8 kΩ
Pout(when Dtot=5%)150 W
Sunflower Representations is a company active in the professional and consumer audio, dealing with audio components, Sunflower Representations is a company active in the professional and consumer audio, dealing with amplifier components, guitar parts, bass parts.
Amplifier parts: Electron/ Vacuum tubes/ valves(from Shuguang or Psvane), tube socket( 4, 5, 8, 9, 10, 12, 13 pins) as well as tube sockets for PCB Mounting, Potentiometers for audio, Potentiometers for tone control, quality Transformers/ output transformers, resistors, capacitors, wires for wiring vale amplifiers, tube base, tube shield, retainers.
