Tube shields on Eros

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	Author	Topic: Tube shields on Eros (Read 480 times)
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Anton

Newbie

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Posts: 47

Tube shields on Eros

« on: December 20, 2010, 06:49:00 AM »

Hi
Sorry for probably stupid question, but I was wondering why 3 front tubes on Eros are covered with shields? Is this a safety issue?
Then why 12BH7 doesn't have shield, and why shields are used only on Eros and Tapehead?
The reason I am asking (besides to educate myself) - I like the look of open tubes and was wondering if it is safe to leave those tubes open...

Anton


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Eros phono / Foreplay III extended upgrade / Paramount 300B

Grainger49

Hero Member

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Posts: 3073

Audio Cheapskate

Re: Tube shields on Eros

« Reply #1 on: December 20, 2010, 08:59:06 AM »

Anton, not safety, but to block and ground out RFI and EMI. The 12Bh7 is the voltage regulator for the right and left channel high voltage. The other three are signal tubes.

Try the tubes with the shields off and see if you pickup any additional noise. If not enjoy the glow.


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Grainger Morrison,

Mozzie quote: Sacred cows make the best hamburgers!

Remember, YOU are the only one who needs to be happy with the sound of your system.

Eros (Mods Have Begun!)/FP-2/Paramour 1/upgrades to all - PS Audio Regenerator, Triangle Zerius Speakers, BA Sub

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