[cgn-dt-n]

Originally Posted by Jefffeith

I joined the Inspire family!

Question, can the Ruby 5U4GC rectifier tube be switched to something else in the future? They are not easy to find.

https://speakerprojects.files.wordpr...5/img_8240.jpg

Hi,
As far as I know, Ruby has never made tubes. they only bought large batches and printed their label. it should be compatible with any 5U4.