Tubes, old and new


I sat down next to Tim Pavaracini in a room at T.H.E. Show in Irvine weekend before last, and listened to him talk about tubes. He told me that in the 50's and 60's the various tube companies would swap tubes amongst themselves when they ran low of a certain model, putting their own logo on the glass of a competitors tube. It would therefore behoove tube enthusiasts to learn the internal physical characteristics specific to each make, especially when spending big money on them. Tim's personal favorites are Mullards. He had nothing good to say about ANY tubes being manufactured today, feeling the guys and gals on the tube assembly lines have not apprenticed long enough to learn the skills necessary to build a quality tube, that they are not career professionals, but merely temporary employees. Buy your tubes from an honest, knowledgeable tube vendor!
128x128bdp24
You're welcome Bdp24. You are most likely to see Phillips tubes with the "New Code" etched into the side of the glass near the bottom (top drawing at the bottom of page 3), using the top two "Examples of "correct code" format." So you can skip all the stuff about the "Old Code" and other code formats. It's not too hard to figure out the codes but if you have any questions feel free to ask me.
Tubes are best understood and appreciated by listening to them in a system, not listening to them talked about by experts. As soon as anybody spews a blanket statement regarding new tubes being somehow universally inferior, they lose credibility immediately regardless of their supposed expertise.
I think that's a pretty safe assumption! Kavi Alexander had Tim design the tube electronics for the microphones and tape recorder he uses to make his Water Lily albums, some of the best recordings ever made. Roger Modjeski says Tim is one of the other (beside himself ;-) engineer/designers working in Hi-Fi he respects. An unsafe assumption is that I spelled Tim's last name correctly (it's actually Paravicini), even though it's right there on the faceplate of my EAR 868 pre-amp. Duh.