Tube cross-reference
5861 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5861 power - triode. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 5861
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.
EC55 Power - Triode
- Base
- Not recorded
- Socket
- Not recorded
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.4 A
Replacement tubes for 5861
The following tubes are recorded as possible replacements for 5861. This direction does not establish that 5861 can replace them.
Power - Triode
The database records EC55 as a possible replacement for5861.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Triode | Power - Triode |
| Construction | Triode | Triode |
| Base | DISC SEAL | Not recorded |
| Socket | Not recorded | Not recorded |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.4 A | 0.4 A |
Where 5861 can be used as the replacement
In these recorded relationships, 5861 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5861.
Power - Triode
The database records 5861 as a possible replacement forEC55.
No special restrictions are recorded for this substitution.
| Specification | 5861 replacement | Original tube |
|---|---|---|
| Tube type | Power - Triode | Power - Triode |
| Construction | Triode | Triode |
| Base | DISC SEAL | Not recorded |
| Socket | Not recorded | Not recorded |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.4 A | 0.4 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 5861 specifications →