5AR4 rectifier tubes - Chinese or Russian?

The ModWright tube rectified power supply PS 9.0 uses 5AR4. The original tube was the Sovtek, which went bad in less than a year. Dan Wright replaced it with a Chinese Ruby 5AR4. He said he had problems with the Sovtek. I have had the Ruby for about 5 months now. Works just fine.

The JJ gz34=(5AR4)is a good new production tube. thetubestore.com has them for $15.00

Your rectifier tube will have a marked effect on the overall sound of your unit. By going cheap there, you'll be ripping yourself off for a lot of music. If you went with a pair of NOS Mullards (GZ34/CV1377, from the Blackburn plant), they'd probably outlive your ownership of the unit, and would definitely improve the unit's presentation(compared to ANY new production tube).

I use the Japanese tubes which Kevin Deal carries.Two in my Prologue 8 CDP .And one in my SLP-05 Cary Pre amp power supply...Great bang for the buck..You won't be disappointed.

I agree with Rodman99999 .

I have Mullard 5AR4/GZ34 Tubes [ Amperex - Holland are nice also and fall into the same Class ] that were well used when I bought them and have been in service for 7+ years in my System . They still Test as New and will probably outlast me .

If you can find NOS - NIB great , but you will pay big time for them . I suggest buying New Testing Used for $25-$35 . They DO have a better sound than the New Production Tubes that I have tried and have a much longer life-span .