Tube cross-reference
EC97 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EC97 voltage - triode (single high frequency). Compare core specifications and verify every restriction before using a replacement.
Exact variations of EC97
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.
6FY5 Voltage - Triode (single high frequency)
- Base
- 7FP
- Socket
- B7G
- Base pins
- 7
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.2 A
Replacement tubes for EC97
The following tubes are recorded as possible replacements for EC97. This direction does not establish that EC97 can replace them.
Voltage - Triode (single high frequency)
The database records 6FY5 as a possible replacement forEC97.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Triode (single high frequency) | Voltage - Triode (single high frequency) |
| Construction | Triode | Triode |
| Base | Not recorded | 7FP |
| Socket | B9A | B7G |
| Base pins | Not recorded | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.215 A | 0.2 A |
Where EC97 can be used as the replacement
In these recorded relationships, EC97 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EC97.
Voltage - Triode (single high frequency)
The database records EC97 as a possible replacement for6ER5.
- Parallel heater circuits only
| Specification | EC97 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (single high frequency) | Voltage - Triode (single high frequency) |
| Construction | Triode | Triode |
| Base | Not recorded | 7FP |
| Socket | B9A | B7G |
| Base pins | Not recorded | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.215 A | 0.18 A |
Voltage - Triode (single high frequency)
The database records EC97 as a possible replacement for6FY5.
No special restrictions are recorded for this substitution.
| Specification | EC97 replacement | Original tube |
|---|---|---|
| Tube type | Voltage - Triode (single high frequency) | Voltage - Triode (single high frequency) |
| Construction | Triode | Triode |
| Base | Not recorded | 7FP |
| Socket | B9A | B7G |
| Base pins | Not recorded | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.215 A | 0.2 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 EC97 specifications →