Tube cross-reference
6SJ7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6SJ7 voltage - pentode sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6SJ7
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.
VT116 NEW (being researched)
- Base
- Not recorded
- Socket
- Not recorded
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- Not recorded
- Heater current
- Not recorded
Replacement tubes for 6SJ7
The following tubes are recorded as possible replacements for 6SJ7. This direction does not establish that 6SJ7 can replace them.
Voltage - Pentode Sharp Cutoff (single)
The database records 5693 as a possible replacement for6SJ7.
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 | RETMA 8N | 8N |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Pentode
The database records 6SJ7WGT as a possible replacement for6SJ7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Pentode Sharp Cutoff (single) | Voltage - Pentode |
| Construction | Pentode | Pentode |
| Base | RETMA 8N | 9L |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Pentode Sharp Cutoff (single)
The database records 6SJ7GT as a possible replacement for6SJ7.
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 | RETMA 8N | 8N |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Pentode Sharp Cutoff (single)
The database records 6SJ7Y as a possible replacement for6SJ7.
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 | RETMA 8N | Not recorded |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6SJ7 can be used as the replacement
In these recorded relationships, 6SJ7 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6SJ7.
Voltage - Pentode Sharp Cutoff (single)
The database records 6SJ7 as a possible replacement for6SJ7GT.
No special restrictions are recorded for this substitution.
| Specification | 6SJ7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Pentode Sharp Cutoff (single) | Voltage - Pentode Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | RETMA 8N | 8N |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage - Pentode Sharp Cutoff (single)
The database records 6SJ7 as a possible replacement for6SJ7Y.
No special restrictions are recorded for this substitution.
| Specification | 6SJ7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Pentode Sharp Cutoff (single) | Voltage - Pentode Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | RETMA 8N | Not recorded |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 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 6SJ7 specifications →