Tube cross-reference
3EA5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 3EA5 voltage tetrode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 3EA5
The following tubes are recorded as possible replacements for 3EA5. This direction does not establish that 3EA5 can replace them.
Voltage Tetrode
The database records 3EV5 as a possible replacement for3EA5.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Tetrode | Voltage Tetrode |
| Construction | Tetrode | Tetrode |
| Base | Not recorded | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 2.9 V | 2.9 V |
| Heater current | 0.45 A | 0.45 A |
Where 3EA5 can be used as the replacement
In these recorded relationships, 3EA5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 3EA5.
Voltage Tetrode
The database records 3EA5 as a possible replacement for3CY5.
No special restrictions are recorded for this substitution.
| Specification | 3EA5 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Tetrode | Voltage Tetrode |
| Construction | Tetrode | Tetrode |
| Base | Not recorded | 7EW |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 2.9 V | 2.9 V |
| Heater current | 0.45 A | 0.6 A |
Voltage Tetrode
The database records 3EA5 as a possible replacement for3EV5.
No special restrictions are recorded for this substitution.
| Specification | 3EA5 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Tetrode | Voltage Tetrode |
| Construction | Tetrode | Tetrode |
| Base | Not recorded | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 2.9 V | 2.9 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 3EA5 specifications →