Microphonics

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Offline Len

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Reply #15 on: November 19, 2009, 03:08:36 AM
Quote from: Grainger49 on November 19, 2009, 02:59:14 AM
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.
« Last Edit: November 19, 2009, 04:05:40 AM by Len »

Paramours
Paraglows
Excites
Heavily modded Soul Sister and Groove Thang
Quickie modded to active low pass filter
Quickie modded to headphone amp
Lots of Bottlehead parts used for building other stuff

Offline Grainger49

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Reply #16 on: November 19, 2009, 03:10:09 AM
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?)


Offline Doc B.

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Reply #17 on: November 19, 2009, 05:46:45 AM
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(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'.

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.

Offline JC

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Reply #18 on: November 19, 2009, 05:48:08 AM
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!

Jim C.

Offline Grainger49

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Reply #19 on: November 19, 2009, 07:43:40 AM
Quote from: Doc B. on November 19, 2009, 05:46:45 AM
Quote
(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. 


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