Rerurn to Romy the Cat's Site
In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps
Post Subject: Vibration in tubes and soundsPosted by drdna on: 1/27/2009
fiogf49gjkf0d
 Romy the Cat wrote: |
| Stonily they are very similar in my view with a very slight advantage of 6E6P in delicacy and softness. I do not know what you mean “respond differently regarding vibration.” |
|
As I had been looking at all these tubes I began to also inspect their interior construction. This will amuse you: one thing I would do is to hold the tube right up to my ear so the glass would be touching and thus mostly damped. Then tapping the tube slightly would cause the internal cathode and anode to vibrate a bit, making a noise. There was a correlation between the type of noise and the sound the tubes in the stereo would make when music was played.
I don't have a circuit built now for the 6E5P, but I have a bunch of 6E5P & 6E6P tubes. Based on my examining them I was guessing that the 6E6P should have slightly more "clean & neutral" sound than the 6E5P. I was curious if this was the case, so I thought to ask you, since you have a familiarity with both tubes.
It seems odd, but I was doing many types of examinations of these tubes and found this to correspond to the sound.
AdrianRerurn to Romy the Cat's Site