2. amps-preamps
  3. 154175-35103

PrimaLuna preamps. Use of 5R4GY tubes instead of 5AR4 / GZ34. Yes or no?

Post addressed to the owners of Primaluna preamplifiers. Have you tried to replace the 5AR4 / GZ34 rectifier valves with 5R4GY? Although the valves have completely different values, they are recommended as an upgrade on the Primaluna website and by UPSCALE Audio.
https://www.primaluna-usa.com/tube-rolling
I would like to try these valves on my Prologue 3 but I am afraid of some breakage.
I would like to know your experiences.
Thank you.
Alessandro
128x128yukio
kalali's avatar
kalali
1,977 posts
 
He's saying 5R4GYS not 5R4GY.....

Read this in case you're interested in more detail:
https://www.diyaudio.com/forums/tubes-valves/67523-5r4-gy-5ar4.html
facten
2,877 posts
 
yukio,

Simply either go by what is on the website or call Kevin Deal at Upscale Audio, he is directly involved in PrimaLuna beyond selling them
yukio's avatar
yukio OP
16 posts
 
@Kalali..5R4GYS and 5R4GY is the same tube. The values are the same
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