Tube cross-reference
5GH8A alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5GH8A voltage triode pentode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 5GH8A
The following tubes are recorded as possible replacements for 5GH8A. This direction does not establish that 5GH8A can replace them.
Voltage Radio Detector Converter
The database records 5EA8 as a possible replacement for5GH8A.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | 9AE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 4.7 V | 4.7 V |
| Heater current | 0.6 A | 0.6 A |
Voltage Triode Pentode
The database records 5GH8 as a possible replacement for5GH8A.
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 | 9AE | 9AE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 4.7 V | 4.7 V |
| Heater current | 0.6 A | 0.6 A |
Voltage Triode Pentode
The database records 5MQ8 as a possible replacement for5GH8A.
- Not suitable for all circuits
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | 9FA |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 4.7 V | 5.6 V |
| Heater current | 0.6 A | 0.6 A |
Where 5GH8A can be used as the replacement
In these recorded relationships, 5GH8A is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5GH8A.
Voltage Radio Detector Converter
The database records 5GH8A as a possible replacement for5EA8.
No special restrictions are recorded for this substitution.
| Specification | 5GH8A replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | 9AE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 4.7 V | 4.7 V |
| Heater current | 0.6 A | 0.6 A |
Voltage Triode Pentode
The database records 5GH8A as a possible replacement for5GH8.
No special restrictions are recorded for this substitution.
| Specification | 5GH8A replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Triode Pentode |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | 9AE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 4.7 V | 4.7 V |
| Heater current | 0.6 A | 0.6 A |
Voltage Radio Detector Converter
The database records 5GH8A as a possible replacement for5U8.
No special restrictions are recorded for this substitution.
| Specification | 5GH8A replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | 9AE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 4.7 V | 5 V |
| Heater current | 0.6 A | 0.6 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 5GH8A specifications →