Tube cross-reference
6J10 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6J10 power - beam (not sweep). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6J10
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.
6Z10 Power - Beam (NOT sweep)
- Base
- 12BT
- Socket
- B12C
- Base pins
- 12
- Sections
- 2
- Heater voltage
- 6.3 V
- Heater current
- 0.95 A
Replacement tubes for 6J10
The following tubes are recorded as possible replacements for 6J10. This direction does not establish that 6J10 can replace them.
Power - Beam (NOT sweep)
The database records 6Z10 as a possible replacement for6J10.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Beam (NOT sweep) | Power - Beam (NOT sweep) |
| Construction | BeamPower-Pentode | BeamPower-Pentode |
| Base | 12BT | 12BT |
| Socket | B12C | B12C |
| Base pins | 12 | 12 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.95 A | 0.95 A |
Where 6J10 can be used as the replacement
In these recorded relationships, 6J10 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6J10.
Power - Beam (NOT sweep)
The database records 6J10 as a possible replacement for6Z10.
No special restrictions are recorded for this substitution.
| Specification | 6J10 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam (NOT sweep) | Power - Beam (NOT sweep) |
| Construction | BeamPower-Pentode | BeamPower-Pentode |
| Base | 12BT | 12BT |
| Socket | B12C | B12C |
| Base pins | 12 | 12 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.95 A | 0.95 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 6J10 specifications →