Premium power beam tetrode, built to withstand the high voltages in Fender Deluxe Reverb and other guitar amplifiers running valves above the published spec. Also very suitable for hi-fi use. 
 

• Rugged & reliable 
• Smooth and balanced frequency response 
• Replacement/upgrade for any 6V6 type 

Founded in 1920 in Southsfield, London, Mullard became known world wide for their reliable, high-quality components and vacuum tubes or valves. Today's new production Mullard tubes are constructed with the same commitment to quality and reliability.