572B type electron tube
The main parameters 1:
General performance and mechanical performance |
Parameter |
Unit |
Weight |
120 |
g |
Hight |
≤170 |
mm |
Installation location |
Axial vertical installation |
|
Cooling condition |
Natural cooling or forced air cooling |
|
Service life |
≥500 |
h |
Electrical parameters Rated value |
Rated value |
Unit |
Filament voltage |
6.3 |
V |
Filament current |
4 |
A |
Input capacitance Ckg |
6 |
pF |
Output capacitance Cka |
0.8 |
pF |
Cross-circuit capacitance Cga |
6 |
pF |
Cathode-grid insulation resistance |
≥200 |
MΩ |
Anode- grid insulation resistance |
≥100 |
MΩ |
Output Power |
0.3 |
KW |
Amplification factor |
190 |
|
Measured when the positive current is 0.05A, and the positive pressure is 2KV and 1.5KV. |
Electric parameter /limit value |
Min. |
Max. |
Unit |
Filament voltage |
|
6.6 |
V |
Anode DC voltage |
|
1.25 |
KV |
Anode DC current |
|
210 |
mA |
Anode dissipation power |
|
125 |
W |
Highest gate current |
|
50 |
mA |
Maximum operating frequency |
|
30 |
MHZ |
The highest temperature at the anode seal |
|
220 |
℃ |
The highest temperature at the stem seal |
|
180 |
℃ |
Maximum temperature of glass bulb |
|
200 |
℃ |
The main parameters4:Typical working state-single tube class A amplification
Filament voltage |
6.3 |
V |
Anode voltage |
750 |
V |
Grid voltage |
20 |
V |
Anode current (zero signal) |
130 |
mA |
Anode current (maximum signal) |
210 |
mA |
Grid audio peak voltage |
60 |
V |
Effective load resistance |
5 |
KΩ |
Output power (when Dtot=5%) |
40 |
W |
Filament voltage |
6.3 |
V |
Anode voltage |
1000 |
V |
Grid voltage |
20 |
V |
Anode current (zero signal) |
75 |
mA |
Anode current (maximum signal) |
300 |
mA |
Grid audio peak voltage |
195 |
V |
Effective load resistance |
8 |
KΩ |
Output power (when Dtot=5%) |
150 |
W |
Filament voltage |
6.3 |
6.3 |
6.3 |
V |
Anode voltage |
1250 |
1500 |
2000 |
V |
Anode current |
140 |
173 |
200 |
mA |
Negative grid bias |
-50 |
-70 |
-70 |
V |
Grid current |
45 |
40 |
30 |
mA |
RF grid peak voltage |
140 |
175 |
190 |
V |
Grid excitation power |
5.6 |
7 |
5.5 |
W |
Anode output power |
135 |
200 |
330 |
W |