Microphonics

[Len]

JC,

Don't you lose the glow if you put a heater hose condom on your tube?

I haven't seen any glow from the Quickie tubes. Very low filament current and voltage, not much on the HT either.

[Grainger49]

Sadly, many of the tubes that we use have low "Glow Factor."  It makes me listen in the dark at night.

(Didn't Doc advise against listening with your eyes closed at VSAC 2008?)

[Doc B.]

(Didn't Doc advise against listening with your eyes closed at VSAC 2008?)

Absolutely not. I would have advised to listen with your eyes closed. For critical listening you want to reduce the input load on the processor to be able to listen as deep as possible, and vision is a major load on the ol' noggin'.

[JC]

Well, some glow still escapes, if there is any.  I have never found any advantage to covering the tube entirely---the 1/2" slice of heater hose usually provides all the damping of the envelope that you're going to get  about halfway down the bottle.

I haven't thought about a way to dress this up, and it truly isn't all that pretty.  I guess that's one of the reasons that commercial tube-dampers are spendy; they tend to look quite a bit better!

[Grainger49]

(Didn't Doc advise against listening with your eyes closed at VSAC 2008?)

Absolutely not. I would have advised to listen with your eyes closed. For critical listening you want to reduce the input load on the processor to be able to listen as deep as possible, and vision is a major load on the ol' noggin'.

I'm very good with that!  I only heard a preview and didn't get to the lecture for some reason.

And JC, as long as the glow isn't hampered.