Replacement finder
Pick the tube you need to replace to see its other names and any replacement we've verified against cited datasheets.
Fitting the same socket doesn't make a tube safe to use. Always confirm with your amplifier's documentation or a qualified technician — tube amps contain lethal voltages.
Same type, different name
No alternate designations recorded.
Variants (check before swapping)
- 5881 — Related 6L6-family tube. Ratings differ from the 6L6GC; check amplifier requirements before use.
Verified substitutions
None verified for 6L6GC yet. We list a replacement only after checking it against cited datasheets. A tube that isn't listed here simply hasn't been checked by us: that doesn't make it suitable or unsuitable for your amplifier.