Tube cross-reference
8KS8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 8KS8 voltage triode pentode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 8KS8
The following tubes are recorded as possible replacements for 8KS8. This direction does not establish that 8KS8 can replace them.
Voltage Triode Pentode
The database records 8AU8 as a possible replacement for8KS8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | Not recorded | 9DX |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.4 V |
| Heater current | 0.45 A | 0.45 A |
Voltage Triode Pentode
The database records 8AU8A as a possible replacement for8KS8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | Not recorded | 9DX |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.4 V |
| Heater current | 0.45 A | 0.45 A |
Voltage Triode Pentode
The database records 8AW8A as a possible replacement for8KS8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | Not recorded | 9DX |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.4 V |
| Heater current | 0.45 A | 0.45 A |
Voltage Triode Pentode
The database records 8JV8 as a possible replacement for8KS8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | Not recorded | NOVAL |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.5 V |
| Heater current | 0.45 A | 0.45 A |
Where 8KS8 can be used as the replacement
In these recorded relationships, 8KS8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 8KS8.
Voltage Triode Pentode
The database records 8KS8 as a possible replacement for8AW8A.
No special restrictions are recorded for this substitution.
| Specification | 8KS8 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | Not recorded | 9DX |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.4 V |
| Heater current | 0.45 A | 0.45 A |
Voltage Triode Pentode
The database records 8KS8 as a possible replacement for8JV8.
No special restrictions are recorded for this substitution.
| Specification | 8KS8 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | Not recorded | NOVAL |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.5 V |
| Heater current | 0.45 A | 0.45 A |
Verify before substituting
Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.
View the complete 8KS8 specifications →