Tube cross-reference
8AR11 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 8AR11 voltage dual pentode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 8AR11
The following tubes are recorded as possible replacements for 8AR11. This direction does not establish that 8AR11 can replace them.
Voltage Dual Pentode
The database records 8BQ11 as a possible replacement for8AR11.
- Not suitable for all circuits
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Dual Pentode | Voltage Dual Pentode |
| Construction | Pentode-Pentode | Pentode-Pentode |
| Base | 12DM | 12DM |
| Socket | B12C | B12C |
| Base pins | 12 | 12 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.4 V |
| Heater current | 0.6 A | 0.6 A |
Where 8AR11 can be used as the replacement
In these recorded relationships, 8AR11 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 8AR11.
Voltage Dual Pentode
The database records 8AR11 as a possible replacement for8BQ11.
- Not suitable for all circuits
| Specification | 8AR11 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Dual Pentode | Voltage Dual Pentode |
| Construction | Pentode-Pentode | Pentode-Pentode |
| Base | 12DM | 12DM |
| Socket | B12C | B12C |
| Base pins | 12 | 12 |
| Sections | 2 | 2 |
| Heater voltage | 8.4 V | 8.4 V |
| Heater current | 0.6 A | 0.6 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 8AR11 specifications →