Tube cross-reference
5BQ7A alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5BQ7A voltage - dual triode (similar high frequency). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 5BQ7A
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.
5BZ7 Voltage - Dual Triode (similar high frequency)
- Base
- Not recorded
- Socket
- Not recorded
- Base pins
- Not recorded
- Sections
- 2
- Heater voltage
- 5.6 V
- Heater current
- 0.45 A
Replacement tubes for 5BQ7A
The following tubes are recorded as possible replacements for 5BQ7A. This direction does not establish that 5BQ7A can replace them.
Voltage - Dual Triode (similar high frequency)
The database records 5BS8 as a possible replacement for5BQ7A.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Dual Triode (similar high frequency) | Voltage - Dual Triode (similar high frequency) |
| Construction | Triode-Triode | Triode-Triode |
| Base | 9AJ | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 5.6 V | 5.6 V |
| Heater current | 0.45 A | 0.45 A |
Where 5BQ7A can be used as the replacement
In these recorded relationships, 5BQ7A is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5BQ7A.
Voltage - Dual Triode (similar high frequency)
The database records 5BQ7A as a possible replacement for5BS8.
No special restrictions are recorded for this substitution.
| Specification | 5BQ7A replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Dual Triode (similar high frequency) | Voltage - Dual Triode (similar high frequency) |
| Construction | Triode-Triode | Triode-Triode |
| Base | 9AJ | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 5.6 V | 5.6 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 5BQ7A specifications →