I'm not sure what other rectifier tubes are a safe replacement for 5ARA but when I played around with different vintages of 5ARA I found the metal base tubes (mid 1950's) made the largest positive change to my SQ than any other charge I had previously made. They are expensive but I would try one before any other changes. By the way I've used them with ModWright pre, modded Sony CD and Bob Latino VTA ST-70 which I build.
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.