Tube cross-reference
6H6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6H6 diode (not rectifier). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6H6
The following tubes are recorded as possible replacements for 6H6. This direction does not establish that 6H6 can replace them.
Diode (NOT rectifier)
The database records EB34 as a possible replacement for6H6.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7O | Not recorded |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.2 A |
Diode (NOT rectifier)
The database records 6H6G as a possible replacement for6H6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7O | Not recorded |
| Socket | IO | Not recorded |
| Base pins | 8 | 7 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Diode (NOT rectifier)
The database records 6H6GT as a possible replacement for6H6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7O | 7O |
| Socket | IO | Not recorded |
| Base pins | 8 | 7 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6H6 can be used as the replacement
In these recorded relationships, 6H6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6H6.
Diode (NOT rectifier)
The database records 6H6 as a possible replacement forEB34.
- Parallel heater circuits only
| Specification | 6H6 replacement | Original tube |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7O | Not recorded |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.2 A |
Diode (NOT rectifier)
The database records 6H6 as a possible replacement for6H6G.
No special restrictions are recorded for this substitution.
| Specification | 6H6 replacement | Original tube |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7O | Not recorded |
| Socket | IO | Not recorded |
| Base pins | 8 | 7 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Diode (NOT rectifier)
The database records 6H6 as a possible replacement for6H6GT.
No special restrictions are recorded for this substitution.
| Specification | 6H6 replacement | Original tube |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7O | 7O |
| Socket | IO | Not recorded |
| Base pins | 8 | 7 |
| Sections | 2 | 2 |
| 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 6H6 specifications →