5AR4/GZ34 Rectifier Tubes

I acquired a pair of Sylvanias Bugle Boys a few days ago and they're even better than my Sylvanias VT 231; better precision, transparency and captures more low level detail, ambiance and a deeper sound-stage. My VT 231 are woodier/bloomier/thicker in comparison and is easily heard on cellos, violins and guitars, types of music I typically listen to...

That's interesting. Pardon my ignorance, what are Sylvania Bugle Boys?

Geoffkait,

They were manufactured by Bugle Boy around 1952 and have three holes in each plate verses two in typical tubes and sounds phenomenal, a great tube and a good find...

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

Mofimadness,

Thanks for catching that; more reading material

Wig :o)