Tube Specifications
Listed below are the essential characteristics of popular tubes for amateur radio.
TRIODES
|
Type Number |
Filament |
µ |
Maximum Ratings |
Typical Operation |
Max. Freq.
for Full Ratings |
| Volts |
Amps |
Plate Diss.
kW |
Pg. W |
Eb, kV |
Ib, A |
Eb, kV |
Ib, IA |
Po, kW |
Gain dB |
| 8873 |
6.3 |
3.0 |
240 |
0.2 |
5 |
2.2 |
0.4 |
2.0 |
0.3 |
0.3 |
15.3 |
500 |
| 3CX400A7 / 8874 |
6.3 |
3.0 |
240 |
0.4 |
5 |
2.2 |
0.4 |
2.0 |
0.3 |
0.3 |
15.3 |
500 |
| 3CX800A7 |
13.5 |
1.5 |
200 |
0.8 |
4 |
2.3 |
0.6 |
2.2 |
0.5 |
0.8 |
15.1 |
350 |
| 3CPX800A7 |
13.5 |
1.5 |
200 |
0.8 |
4 |
3.5 |
0.6 |
3.2 |
0.4 |
0.9 |
15.9 |
500 |
| 3CX1200A7 |
7.5 |
21.0 |
200 |
1.2 |
50 |
5.0 |
0.8 |
3.6 |
0.7 |
1.5 |
12.5 |
110 |
| 3CX1200D7 / YU-121 |
6.3 |
25.0 |
200 |
1.2 |
50 |
5.5 |
0.8 |
4.0 |
0.6 |
1.6 |
14.8 |
110 |
| 3CX1200D7 / YU-181 |
6.3 |
25.0 |
200 |
1.2 |
50 |
5.5 |
0.8 |
4.0 |
0.6 |
1.6 |
14.8 |
110 |
| YC-236 |
5.0 |
10.5 |
200 |
1.5 |
20 |
4.0 |
1.0 |
4.0 |
0.9 |
2.0 |
16.0 |
250 |
| 3CX1000A7 / 8283 |
5.0 |
30.5 |
200 |
1 |
45 |
3.5 |
1.0 |
3.5 |
0.9 |
2.1 |
13.1 |
220 |
| 3CX1500A7 / 8877 |
5.0 |
10.5 |
200 |
1.5 |
20 |
4.0 |
1.0 |
3.5 |
1.0 |
2.1 |
15.1 |
250 |
| 3CX5000A7 |
10.0 |
17.5 |
200 |
5 |
35 |
6.5 |
2.5 |
6.0 |
1.6 |
5.0 |
14.2 |
110 |
| 3CX3000A / 8238 |
7.5 |
51.5 |
5 |
4 |
50 |
6.0 |
2.5 |
5.5 |
1.1 |
5.1 |
14.5 |
110 |
| 3CX3000F1 / 8239 |
7.5 |
51.5 |
5 |
4 |
50 |
6.0 |
2.5 |
5.5 |
1.1 |
5.1 |
14.5 |
75 |
| 3CX3000A7 |
7.5 |
51.5 |
160 |
4 |
225 |
5.0 |
2.5 |
4.8 |
1.5 |
5.5 |
11.0 |
110 |
| 3CX3000F7 |
7.5 |
50.5 |
160 |
4 |
225 |
5.0 |
2.5 |
4.8 |
1.5 |
5.5 |
11.0 |
75 |
| 3CX2500F3 / 8251 |
7.5 |
51.5 |
20 |
4 |
150 |
6.0 |
2.5 |
6.0 |
2.1 |
10.0 |
18.7 |
75 |
| 3CX6000A7 / YU-148 |
7.0 |
78.0 |
200 |
6 |
225 |
7.0 |
3.5 |
5.7 |
2.5 |
10.0 |
12.2 |
110 |
| 3CX10,000A3 / 8159 |
7.5 |
99.0 |
20 |
10 |
250 |
7.0 |
5.0 |
7.0 |
4.0 |
22.4 |
15.3 |
160 |
| 3CX10,000A7 / 8160 |
7.5 |
100.0 |
200 |
10 |
500 |
9.0 |
4.0 |
7.6 |
3.7 |
22.5 |
11.7 |
160 |
| 3CX15,000A7 |
6.3 |
160.0 |
200 |
15 |
500 |
10.0 |
5.0 |
7.0 |
4.6 |
25.5 |
9.9 |
110 |
| 3CX20,000A7 |
6.3 |
160.0 |
200 |
20 |
500 |
10.0 |
5.0 |
7.8 |
4.2 |
27.5 |
10.8 |
110 |
| 3-500Z |
5.0 |
14.6 |
130 |
0.5 |
20 |
4.0 |
0.4 |
3.0 |
0.4 |
0.74 |
14.0 |
110 |
| 3-1000Z |
7.5 |
20.0 |
200 |
1 |
50 |
6.0 |
0.7 |
6.0 |
0.7 |
3.2 |
13.2 |
110 |
| 811A |
6.3 |
4.0 |
|
60 watts |
8 |
1.5 |
0.175 |
1.5 |
0.16 |
0.16 |
13.0 |
30 |
| 572B |
6.3 |
4.0 |
170 |
160 watts |
50 |
2.7 |
0.275 |
2.4 |
0.25 |
0.30 |
7.5 |
30 |
TETRODES
|
Type Number
|
Filament |
Maximum Ratings |
Typical Operation |
Max. Freq.
for Full Ratings |
| Volts |
Amps |
Plate Diss.
kW |
Pg.1, W |
Pg.2, W |
Eb, kV |
Ib, A |
Eb, kV |
Ib, IA |
Po, kW |
Gain dB |
| 8122 |
13.5 |
1.3 |
0.4 |
– |
8 |
2.2 |
0.3 |
2.0 |
0.3 |
0.4 |
– |
500 |
| 8930 |
6.0 |
2.6 |
0.4 |
2 |
12 |
2.4 |
0.3 |
2.0 |
0.3 |
0.4 |
21.0 |
500 |
| 4CX250B / 7203 |
6.0 |
2.6 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
500 |
| 4CX250BC / 8957 |
6.0 |
2.4 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
500 |
| 4CX250FG / 8621 |
26.5 |
0.5 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
500 |
| 4CX250R / 7580W |
6.0 |
2.6 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
500 |
| 4CX300A / 8167 |
6.0 |
2.9 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
500 |
| 4CX350A / 8321 |
6.0 |
2.9 |
0.4 |
0 |
8 |
2.5 |
0.3 |
2.2 |
0.3 |
0.4 |
20.5 |
110 |
| 4CX350AC / 8321A |
6.0 |
2.9 |
0.4 |
0 |
8 |
2.5 |
0.3 |
2.2 |
0.3 |
0.4 |
20.5 |
110 |
| 4CX350F / 8322 |
26.5 |
0.7 |
0.4 |
0 |
8 |
2.5 |
0.3 |
2.2 |
0.3 |
0.4 |
20.5 |
110 |
| 4CX350FJ / 8904 |
26.5 |
0.7 |
0.4 |
0 |
8 |
2.5 |
0.3 |
2.2 |
0.3 |
0.4 |
20.5 |
110 |
| 4CX150A / 7034 |
6.0 |
2.6 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
150 |
| 8560AS |
6.3 |
2.6 |
0.3 |
2 |
12 |
2.0 |
0.3 |
2.0 |
0.3 |
0.4 |
21.3 |
500 |
| 4CX300Y / 8561 |
6.0 |
3.5 |
0.4 |
1 |
8 |
2.0 |
0.4 |
2.0 |
0.4 |
0.6 |
21.9 |
110 |
| 4CX400A |
6.3 |
3.2 |
0.4 |
– |
– |
2.5 |
0.4 |
2.5 |
0.27 |
0.4 |
– |
500 |
| 4CX600JB |
6.0 |
5.4 |
0.6 |
1 |
15 |
3.0 |
0.6 |
2.8 |
0.6 |
1.0 |
20.0 |
30 |
| 4CX800A / GU-74B |
12.6 |
3.6 |
0.8 |
|
|
2.5 |
0.8 |
3.2 |
0.63 |
0.8 |
|
150 |
| GU-84B / 4CX2500E |
27.0 |
3.7 |
2.5 |
1 |
30 |
2.2 |
2.0 |
2.0 |
1.25 |
1.5 |
– |
75 |
| 4CX800A / GU74B |
12.6 |
3.6 |
0.8 |
– |
– |
2.5 |
0.8 |
3.2 |
0.63 |
0.8 |
– |
150 |
| 4CX1500B / 8660 |
6.0 |
10.0 |
1.5 |
1 |
12 |
3.0 |
0.9 |
2.9 |
0.7 |
1.1 |
28.6 |
110 |
| 4CX1000A / 8168 |
6.0 |
9.0 |
1.0 |
1 |
12 |
3.0 |
1.0 |
3.0 |
0.9 |
1.6 |
20.0 |
110 |
| 4CX1500A |
5.0 |
38.5 |
1.5 |
25 |
75 |
5.0 |
1.0 |
4.0 |
0.8 |
2.5 |
28.4 |
150 |
| 4CX1600B |
12.6 |
4.4 |
1.6 |
– |
– |
3.3 |
1.4 |
2.4 |
0.87 |
2.1 |
– |
250 |
| 4CX3000A / 8169 |
9.0 |
41.5 |
3.5 |
50 |
175 |
7.0 |
2.0 |
6.0 |
1.5 |
7.1 |
23.1 |
150 |
| 4CX3500A |
5.0 |
90.0 |
3.5 |
50 |
165 |
5.5 |
2.0 |
5.0 |
1.3 |
5.3 |
23.2 |
220 |
| 4CX5000A / 8170 |
7.5 |
75.0 |
5.0 |
75 |
250 |
7.5 |
3.0 |
7.0 |
2.2 |
12.5 |
20.7 |
110 |
| 4CX5000R / 8170W |
7.5 |
75.0 |
5.0 |
75 |
250 |
7.5 |
3.0 |
7.0 |
2.2 |
12.5 |
20.7 |
110 |
| 4CX7500A |
7.0 |
110.0 |
7.5 |
50 |
165 |
7.5 |
3.0 |
7.0 |
2.4 |
13.0 |
20.1 |
220 |
| 4CX10,000D / 8171 |
7.5 |
75.0 |
10.0 |
75 |
250 |
7.5 |
3.0 |
7.5 |
2.8 |
16.0 |
20.3 |
110 |
| 4CX12,000A / 8989 |
6.5 |
120.0 |
12.0 |
150 |
300 |
10.0 |
3.5 |
10.0 |
2.8 |
22.5 |
19.1 |
220 |
| 4CX20,000A / 8990 |
10.0 |
140.0 |
20.0 |
200 |
450 |
10.0 |
5.0 |
9.0 |
4.1 |
28.8 |
19.5 |
110 |
| 4CX15,000A / 8281 |
6.3 |
160.0 |
15.0 |
200 |
450 |
10.0 |
6.0 |
10.0 |
4.6 |
36.5 |
22.2 |
110 |
| 9010 / YC-130 |
7.5 |
160.0 |
18.0 |
200 |
450 |
10.0 |
5.0 |
10.0 |
4.6 |
36.5 |
22.2 |
110 |
| 4-250A |
5.0 |
14.5 |
.25 |
10 |
35 |
4.0 |
0.35 |
3.0 |
0.31 |
1.0 |
– |
110 |
| 4-400A |
5.0 |
14.7 |
.4 |
10 |
35 |
4.0 |
0.35 |
3.0 |
0.35 |
1.1 |
– |
110 |
| 4-1000A |
7.5 |
21.3 |
1.0 |
25 |
75 |
6.0 |
0.7 |
6.0 |
0.7 |
3.4 |
– |
110 |
Characteristics listed on this page are approximate, and for comparison only.
The user should consult manufacturers data for detailed operating parameters to fit the application.
This Information retrieved from RF Parts Company.
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