Tube cross-reference
ECC86 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the ECC86 voltage - triode (under 100v). Compare core specifications and verify every restriction before using a replacement.
Exact variations of ECC86
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.
6GM8 Voltage - Triode (under 100V)
- Base
- 9DE
- Socket
- B9A
- Base pins
- 9
- Sections
- 2
- Heater voltage
- 6.3 V
- Heater current
- 0.33 A
Replacement tubes for ECC86
The following tubes are recorded as possible replacements for ECC86. This direction does not establish that ECC86 can replace them.
Voltage - Triode (under 100V)
The database records 6GM8 as a possible replacement forECC86.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (under 100V) | Voltage - Triode (under 100V) |
| Construction | Triode-Triode | Triode-Triode |
| Base | 9DE | 9DE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.33 A | 0.33 A |
Where ECC86 can be used as the replacement
In these recorded relationships, ECC86 is the replacement tube. The listed original tubes are not automatically suitable as replacements for ECC86.
Voltage - Dual Triode (similar)
The database records ECC86 as a possible replacement for6463.
No special restrictions are recorded for this substitution.
| Specification | ECC86 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (under 100V) | Voltage - Dual Triode (similar) |
| Construction | Triode-Triode | Triode-Triode |
| Base | 9DE | 9CZ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.33 A | 0.6 A |
Voltage - Triode (under 100V)
The database records ECC86 as a possible replacement for6GM8.
No special restrictions are recorded for this substitution.
| Specification | ECC86 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (under 100V) | Voltage - Triode (under 100V) |
| Construction | Triode-Triode | Triode-Triode |
| Base | 9DE | 9DE |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.33 A | 0.33 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 ECC86 specifications →