Phenomenal tube in the V1 spot. The long plate filament provides high gain, a warm yet articulate treble response, beautifully rich overdrive, and low noise. Bass and low-mid response is articulate and tight; harmonics are nuanced and clear. This tube works particularly well in my Fender Blues Jr. tweed and I think it is far superior to Groove Tube, Mullard, or Tung-Sol alternatives. An easy and oft-overlooked preamp upgrade for middle-of-the-road and boutique guitar amps. Don't hesitate!
Rating: [5 of 5 Stars!]