5AR4/GZ34 Rectifier Tubes


Is anyone currently making a tube of this type that rivals the performance of the best NOS Mullard tubes? I'm surprised that Sophia, Psvane and others appear not to have offered this tube. Suggestions?
128x128dodgealum
A little clarification. The "Bugle Boy" was a series of tubes that were made by Amperex. There was no company named Bugle Boy.

http://vintagetubeservices.com/page9.html
Iso...nice catch on your part also! Wig is indeed thinking of the Bad Boys since he was using VT231s which are a 6SN7 substitute. I can't believe I missed that. I actually have several pairs of Sylvania Bad Boys. Great tube btw...
So, all of this begs the question, which is better the early '40s Sylvania VT-231 or the later early '50s Sylvania 3 hole 6SN7GT? My understanding is that the "badboy" is sonically very similar to the VT-231 but without its bass shyness. So, the question is, is the VT-231 superior in other ways to the "badboy." Air, high frequency extension, smoothness, etc.