Tube cross-reference
7C6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 7C6 voltage - triode (with diode, heptode or hexode). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 7C6
The following tubes are recorded as possible replacements for 7C6. This direction does not establish that 7C6 can replace them.
Voltage - Triode (with diode, heptode or hexode)
The database records 7B6 as a possible replacement for7C6.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 8W | 8W |
| Socket | B8G | B8G |
| Base pins | 8 | 8 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 7 V |
| Heater current | 0.3 A | 0.32 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 7B6LM as a possible replacement for7C6.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 8W | Not recorded |
| Socket | B8G | Not recorded |
| Base pins | 8 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 7C6 can be used as the replacement
In these recorded relationships, 7C6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 7C6.
Voltage - Triode (with diode, heptode or hexode)
The database records 7C6 as a possible replacement for7B6.
- Parallel heater circuits only
| Specification | 7C6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 8W | 8W |
| Socket | B8G | B8G |
| Base pins | 8 | 8 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 7 V |
| Heater current | 0.3 A | 0.32 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 7C6 as a possible replacement for7B6LM.
- Parallel heater circuits only
| Specification | 7C6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Triode | Diode-Diode-Triode |
| Base | 8W | Not recorded |
| Socket | B8G | Not recorded |
| Base pins | 8 | Not recorded |
| Sections | 3 | 3 |
| 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 7C6 specifications →