TUNG-SOL 6386 Dual Triode Tube (Unit)

The Tung-Sol 6386 is a moderate-gain dual-triode tube designed for circuits that exploit the gradual cutoff characteristic of each of its sections, thereby allowing continuous gain modulation without any abrupt signal interruption. It relies on this controlled non-linear response to ensure dynamic level variation, which explains its use in variable-gain audio compressors, where it has helped shape the signal since the 1960s.