Tube cross-reference
6V9 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6V9 voltage pentode. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6V9
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.
ECH200 Voltage - Triode (with diode, heptode or hexode)
- Base
- Not recorded
- Socket
- B10B
- Base pins
- 10
- Sections
- 2
- Heater voltage
- 6.3 V
- Heater current
- 0.435 A
Replacement tubes for 6V9
The following tubes are recorded as possible replacements for 6V9. This direction does not establish that 6V9 can replace them.
Voltage - Triode (with diode, heptode or hexode)
The database records ECH200 as a possible replacement for6V9.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Pentode | Heptode-Triode |
| Base | Not recorded | Not recorded |
| Socket | Not recorded | B10B |
| Base pins | Not recorded | 10 |
| Sections | 1 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.65 A | 0.435 A |
Where 6V9 can be used as the replacement
In these recorded relationships, 6V9 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6V9.
Voltage - Triode (with diode, heptode or hexode)
The database records 6V9 as a possible replacement forECH200.
No special restrictions are recorded for this substitution.
| Specification | 6V9 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode | Voltage - Triode (with diode, heptode or hexode) |
| Construction | Pentode | Heptode-Triode |
| Base | Not recorded | Not recorded |
| Socket | Not recorded | B10B |
| Base pins | Not recorded | 10 |
| Sections | 1 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.65 A | 0.435 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 6V9 specifications →