Tube cross-reference
6R8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6R8 voltage - triode (with diode, heptode or hexode). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6R8
The following tubes are recorded as possible replacements for 6R8. This direction does not establish that 6R8 can replace them.
Voltage - Triode (with diode, heptode or hexode)
The database records 6LD12 as a possible replacement for6R8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Diode-Triode | Diode-Diode-Diode-Triode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 4 | 4 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 A |
Voltage - Triode (with diode, heptode or hexode)
The database records DH719 as a possible replacement for6R8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Diode-Triode | Diode-Diode-Diode-Triode |
| Base | Not recorded | Not recorded |
| Socket | B9A | Not recorded |
| Base pins | 9 | Not recorded |
| Sections | 4 | 4 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 A |
Voltage - Triode (with diode, heptode or hexode)
The database records EABC80 as a possible replacement for6R8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Diode-Triode | Diode-Diode-Diode-Triode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 4 | 4 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6T8 as a possible replacement for6R8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Diode-Triode | Diode-Diode-Diode-Triode |
| Base | Not recorded | RETMA 9E |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 4 | 4 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 A |
Voltage - Triode (with diode, heptode or hexode)
The database records 6T8A as a possible replacement for6R8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (with diode, heptode or hexode) | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Diode-Diode-Diode-Triode | Diode-Diode-Diode-Triode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 4 | 4 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 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 6R8 specifications →