Description
The Sovtek 6L6WGC / 5881 is one of the most dependable and widely used power valves in current production. The 6L6 lineage stretches back to RCA’s groundbreaking 1936 original — the valve that defined the sound of American amplification — and Sovtek’s WGC variant maintains the type’s reputation for robust build quality and tonally pleasing performance.
The 5881 designation indicates a slightly ruggedised version of the 6L6, with higher plate voltage ratings and improved mechanical stability. Sonically, these valves offer a clean, articulate top end with a firm, extended bass — characteristics that work equally well in guitar amps and Hi-Fi power stages.
Compatible with 6L6, 6L6GC, 6L6WGC, 5881 and related positions. A popular choice for Fender and Ampeg guitar amplifiers, as well as Hi-Fi integrated amplifiers. Single valve, tested before dispatch.




