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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 18th March 2018, 02:48 AM   #1
DaMuffinMan is offline DaMuffinMan  United States
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Default Vacuum Tube Shock Proof Plates

Vacuum Tube Shock Proof Plates, are they useful? Do they work? Is that the correct name for them?

I like the looks of this one that is attached but can't find any like it. Any help for where to source these in the US?
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Old 18th March 2018, 09:06 AM   #2
jameshillj is offline jameshillj  Australia
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Not in the US but they used to be available from HK on the 'vt4c' website - they're not shock proof plates tho, just Ali or copper -
For vibration reduction/isolation, there's some place in Germany that sells the little rubber mounts with metal thread ends (for a crazy price, too!) but you can find these in the US from Mcmasters carr, I think

The actual 'shock proof' mounts are something else again that used to be used in military equipment - this used a type of flexible rubber/silicon collar but you can make these yourself using the same mounting plates as from the same 'vt4c' or make them yourself

It's interesting that you're looking for a system to isolate the tubes/valves from the chassis as these vibrations are often the most significant but overlooked source of trouble.
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Old 18th March 2018, 10:14 AM   #3
JonSnell Electronic is offline JonSnell Electronic  United Kingdom
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Why not replace the faulty valve?
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Old 18th March 2018, 10:55 AM   #4
DaMuffinMan is offline DaMuffinMan  United States
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Thanks for the replies. There is no faulty valve I just wanted them for asthetic purposes.
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Old 18th March 2018, 02:35 PM   #5
JonSnell Electronic is offline JonSnell Electronic  United Kingdom
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Some companies sell a silicon band to fit around the valve at greatly inflated prices because people are daft enough to shell out on them. Many companies, Mouser, RS components etc, sell red silicon bands for pennies or fleabay them for pounds as "audiophile quality dampers".
For instance; https://www.ebay.co.uk/itm/Duende-Criature-Electronic-Tube-damper-ring/263503356533?hash=item3d5a062275:g:2qsAAOSwC8FZbZb I
Duende Criatura tube rings considerably reduce microphonics, distortion and self-oscillation from audio tubes. They are to be slid around the top part of the tube where they reduce mechanical vibrations. The listener will notice improvement of three dimensional picture, a more controlled bass and a cleaner soundstage.
Yeah right lots!
2 X DAMPER *VIBRA-SORB BS310 TUBE VALVE RINGS 20MM ECC83 12AX7 ECC82 12AU7 6N1P | eBay

"These fat profile flexible rings are essentially vibration absorbers which reduce external audio feedback which can cause valve microphony impairing the sound quality significantly".

Believe that and you will believe anything. So don't get fleeced!
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Old 5th April 2018, 11:03 PM   #6
DaMuffinMan is offline DaMuffinMan  United States
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Ok so I found the company ( Audio Catalog ) that sells these but can't get a reply from them. Does anyone know of anywhere I can get these?
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Old 6th April 2018, 12:16 AM   #7
jameshillj is offline jameshillj  Australia
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I've never had any problems over the years contacting the guy that runs this site - did you use the 'sale@vt4c.com' address?
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Old 6th April 2018, 02:04 AM   #8
DaMuffinMan is offline DaMuffinMan  United States
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Yes, 1st on 3/19/18 and again today. Thanks
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Old 6th April 2018, 05:24 AM   #9
jameshillj is offline jameshillj  Australia
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They do have a forum - try writing your query there - they're a pretty good supply business so can't figure your problem.

You could try Aliexpress and so on - pretty sure someone machines these in China somewhere - not sure what they would call them .
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Old 6th April 2018, 06:02 PM   #10
DaMuffinMan is offline DaMuffinMan  United States
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I actually got a reply this morning from him. Thanks!
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