5AR4/GZ34 Rectifier Tubes

The Create Audio 5AR4/GZ34 is "supposed" to be quite good. I've heard/read mixed reviews. I haven't tried one yet, but might.

There has been a flurry of posting recently about the Create Synergy 5AR4. I'm using the tube in my ModWright Sony, and prefer it to my 1969 vintage Blackburn Mullard. In my opinion, it is a real find, since the old Mullards are getting to be hard to find and kind of expensive. It is not a sweet, tubey tube, so if that is what you are looking for you will be disappointed. The create is the only tube I have found that offers the dynamics of the Mullards. The create tubes are offered for sale on audiogon. Check username fork.

Just idle curiousity, but what's the technical theory behind an AC-to-DC rectifier tube creating a "sweet, tubey" sound?

Mlsstl, you got me. I'm not an ee. I would have expected this from an output tube, not an ee. I had my ModWright for some time before I started rolling rectifier tubes, because I was skeptical. I tried a couple different new production tubes, got ripped off on a vintage Mullard, then finally got a good Blackburn Mullard. A short time thereafter, my back ordered Create tube arrived. All I can say is a number of people have found this tube to their liking, but not everyone.