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Tung Sol 5AR4 rectifier tube. Made in Russia. 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 timeExcellent choice for both Hifi and instrument amplification
Replacement/upgrade for all 5AR4/GZ34 types
Michael L.
Reviewed in the United States on March 15, 2025
works like a charm but its only a rectifier has very little to do with sound quality but as a rule of thumb 99% of russian made tubes a great
chris
Reviewed in the United States on March 21, 2022
I put it in my Princeton Reverb reissue along with Genalex Gold Lions and it sounds great and background noise is non-existent. Rectifiers don't have alot to due with sound quality, but need to last a long time and supply constant voltage. This does it
Phil S.
Reviewed in the United States on December 30, 2022
Great product, fast shipping, good price. Definitely recommended.
djw
Reviewed in the United States on May 27, 2021
This tube flashed and opened up upon turning on after maybe 3 hours max operation.Makes me nervous to buy another.
-=Rudy=-
Reviewed in the United States on June 8, 2020
I had to buy this tube since I had ordered a Mullard GZ30 from the UK that after six weeks still hadn't arrived. The 5AR4 can replace the 5Z4G in many applications, as long as you are aware that the voltage drop is slightly different (please check the specs before substituting). Otherwise, the pinout and specs are just a perfect match. Works perfectly in my Reisong A10 amp.
Brap
Reviewed in the United States on March 26, 2019
Audio amplifier. Good replacement
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