The 5AR4 has a very low forward voltage drop for a given plate current. Substituting another rectifier may likely cause a B+ voltage sag which may affect performance. That’s probably why Luxman doesn’t give you other choices. Safety wise it’s not an issue.
Other Rectifier tubes Alternative for 5AR4
I have several components that it explicitly stated that I can use a variety of rectifiers in the same family: 5AR4, 5U4, 5Y4, 5Y3 ... etc.
i have a custom built 300B power amp based on the Luxman MQ-300. It uses 5AR4, but it doesn’t state I can put in other tubes. How safe is it to put in other rectifier tubes mentioned above?
Thanks in advance.
i have a custom built 300B power amp based on the Luxman MQ-300. It uses 5AR4, but it doesn’t state I can put in other tubes. How safe is it to put in other rectifier tubes mentioned above?
Thanks in advance.