Description Tung Sol 5AR4 Premium directly heated heavy duty rectifier Diode. Helps extend the life of the other valves in the amplifier by allowing them to heat up before plate voltage is applied. Tung-Sol tubes reflect the best in vintage construction with unsurpassed tone and reliability. Low internal voltage drop & controlled heater warm up time Excellent choice for both Hifi and instrument amplification Replacement/upgrade for all 5AR4/GZ34 types Made In Russia Strongly committed to quality manufacturing, Tung Sol tubes have always been known for their reliability and great tone. Today’s new production Tung Sol tubes are constructed with the same commitment to quality and reliability. Tung Sol tubes reflect the best in vintage Tung Sol construction with unsurpassed tone and reliability.
