Tube cross-reference
6AJ5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6AJ5 voltage pentode - sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6AJ5
The following tubes are recorded as possible replacements for 6AJ5. This direction does not establish that 6AJ5 can replace them.
Voltage Pentode - Sharp Cutoff (single)
The database records 6F35 as a possible replacement for6AJ5.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | 7BD | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Where 6AJ5 can be used as the replacement
In these recorded relationships, 6AJ5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AJ5.
Voltage Pentode - Sharp Cutoff (single)
The database records 6AJ5 as a possible replacement for6F35.
No special restrictions are recorded for this substitution.
| Specification | 6AJ5 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | 7BD | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 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 6AJ5 specifications →