6L6GB / 6L6GC / 6L6WGB / 5881

This is the highly regarded SED SV6L6GC. These current production tubes are constructed with a gold-plated molybdenum alloy grid and carbon-coated screen grid. All ratings of the SED SV6L6GC meet or exceed those of the original version.

The RCA 6L6GC power tubes in this premium matched pair have black plates and side O getters (flashing shows light use). The black bases have red print. Both tubes test as new and are precisely matched.

The GE 5881 power tubes in this premium matched pair are a military spec 6L6WGB type tubes. They were made in Canada and have gray plates, dual side getters, and brown bases. Both tubes test as new.