Tube cross-reference
6ES6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6ES6 voltage pentode - remote cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6ES6
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.
EF97 Voltage Pentode or Tetrode (under 100V)
- Base
- MINIATURE
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.2 A
Replacement tubes for 6ES6
The following tubes are recorded as possible replacements for 6ES6. This direction does not establish that 6ES6 can replace them.
Voltage Pentode or Tetrode (under 100V)
The database records EF97 as a possible replacement for6ES6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | Not recorded | MINIATURE |
| Socket | B7G | B9A |
| Base pins | 7 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.2 A |
Voltage Pentode or Tetrode (under 100V)
The database records EF98 as a possible replacement for6ES6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | Not recorded | MINIATURE |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.2 A |
Voltage Pentode or Tetrode (under 100V)
The database records 6ET6 as a possible replacement for6ES6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | Not recorded | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6ES6 can be used as the replacement
In these recorded relationships, 6ES6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6ES6.
Voltage Pentode or Tetrode (under 100V)
The database records 6ES6 as a possible replacement forEF97.
No special restrictions are recorded for this substitution.
| Specification | 6ES6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | Not recorded | MINIATURE |
| Socket | B7G | B9A |
| Base pins | 7 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.2 A |
Voltage Pentode or Tetrode (under 100V)
The database records 6ES6 as a possible replacement for6ET6.
No special restrictions are recorded for this substitution.
| Specification | 6ES6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | Not recorded | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| 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 6ES6 specifications →