Tube cross-reference
6137 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6137 voltage pentode - remote cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Where 6137 can be used as the replacement
In these recorded relationships, 6137 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6137.
Voltage Pentode - Remote Cutoff (single)
The database records 6137 as a possible replacement for6SK7.
No special restrictions are recorded for this substitution.
| Specification | 6137 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | B8-21 | RTMA 8N |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 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 6137 specifications →