Tube cross-reference
EL84 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EL84 power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Exact variations of EL84
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
6BQ5 Power - Pentode (NOT beam)
- Base
- B9A
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.76 A
Replacement tubes for EL84
The following tubes are recorded as possible replacements for EL84. This direction does not establish that EL84 can replace them.
Power - Pentode (NOT beam)
The database records 6BQ5 as a possible replacement forEL84.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | B9A | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.76 A | 0.76 A |
Where EL84 can be used as the replacement
In these recorded relationships, EL84 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EL84.
Power - Pentode (NOT beam)
The database records EL84 as a possible replacement for6BQ5.
No special restrictions are recorded for this substitution.
| Specification | EL84 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | B9A | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.76 A | 0.76 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 EL84 specifications →