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.
5AR4 rectifier tubes - Chinese or Russian?
I'm needing to replace 2 - 5AR4 rectifier tubes in my Primaluna Prologue 3 preamp. Kevin at Upscale Audio has both the Sovtek and Shuguang tubes for $15 bucks each. The next step up is the Japanese tube at $45 each.
The tubes I'm replacing are original so I assume they are the Chinese model and I haven't tried rolling in any others. Should I stick with the Sovtek/Shuguang or step up to the Japanese or other tube replacements?
Eric
The tubes I'm replacing are original so I assume they are the Chinese model and I haven't tried rolling in any others. Should I stick with the Sovtek/Shuguang or step up to the Japanese or other tube replacements?
Eric