Would the Express V1 benefit from this?

Express, Liverpool, Rocket, Dirty Little Monster, etc.

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rooster
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Re: Would the Express V1 benefit from this?

Post by rooster »

S - No, I'm not sure I'd seen this, but maybe I did a few years ago, seems familiar. What's odd about it is how high the socket must sit out of the chassis when its installed? Either that or you cinch it down pretty tight, which would negate something? Hmm. But sure, it might work for the Express.

The tube dampener I am using is a different idea, putting cushion and mass where the tube is. The Weber idea looks to be trying to 'float' the tube, or separate it from the chassis. Again, how high and therefore how free floating will it end up?

FWIW actually, I did run into a device like this from years ago, using very thin spring copper, and I used in a few builds. It works very well I think. I will send a pic of it and you can see its similiar approach to the Weber item. This being said, although it stuck out of the chassis a bit, its isolation elements (the copper wafer looking thing) have to be better than the Weber item. When you see the pic you will understand I think.

Finally, then, talking about both types of technology, both trying to produce the same effect, I think the Euro one is better FOR THIS APPLICTION. Yes, more $$, but it just does something different. Too, I think that the Euro piece actually dampens the whole chassis to some degree, as well as the V1. Now, it may not perform as well as the Weber piece given a different scenario - like maybe in an upside down combo amp? - but then the TW Express is pretty much a Hi-Fi build, given its construction.

OK, done. I am not a rep for the Euro company, just a customer. What I am is somebody who loves his Wreck clone, and I love it especially with this device onboard! 8)

T(im)????????
Last edited by rooster on Wed Aug 25, 2010 11:41 pm, edited 1 time in total.
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roberto
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Re: Would the Express V1 benefit from this?

Post by roberto »

Just receipt Rooster's letter.
I will try the dampner next weekend and let you know about improvements.

Thank you for all Rooster!
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martin manning
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Re: Would the Express V1 benefit from this?

Post by martin manning »

Another data point: I have a Marshall Studio 15 combo, an interesting little amp that includes features intended to make it quiet. One of these is mounting the V1 socket on rubber grommets.

MPM
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Noel Grassy
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Re: Would the Express V1 benefit from this?

Post by Noel Grassy »

I just noticed on the old Matchless amps what appears to be rubber grommets on the 9 pin tubes. Maybe these are rubberized lock washers
instead?
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doctord02
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Re: Would the Express V1 benefit from this?

Post by doctord02 »

The Matchless pics just show colored locking star washers - you can see they are underneath grounding tabs, so that cant be an insulating material.
triodecr
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Re: Would the Express V1 benefit from this?

Post by triodecr »

Actually, it looks like the blue wire from the ground tab goes to a grounded tab on the phenolic strip. Since the socket is floated above the chassis (both physically and electrically) by the rubber o-rings the tube shield is no longer an electrical shield. It looks to me like they are carrying the ground through to the tube shield via the mounting screw this way.

cr
1dallek1
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hi im new

Post by 1dallek1 »

i have the same story bought the fethead and saw the ring. this ends my search for the v1 treatment and those guys are really friendly, do it
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rooster
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Re: Would the Express V1 benefit from this?

Post by rooster »

Woah - thread resurrected! Funny, I was just showing my amp to somebody and he ask me 'what the hey is that thing?' I found myself wondering if anybody else on the forum ever gave it a real go. I never saw a finished comment on it other than my own.... ?

But now I see somebody else has tried it. Cool! Too, be it noted that I mounted mine differently than you did. And I hope the stock way works as well but I never tried it. ??

Anyway, 1dallek1, thanks for refresh! Take care.
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M Fowler
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Re: Would the Express V1 benefit from this?

Post by M Fowler »

Did you steal that from a plumber it looks like a copper reducer fitting. :)
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rawnster
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Re: Would the Express V1 benefit from this?

Post by rawnster »

rooster wrote:...I found myself wondering if anybody else on the forum ever gave it a real go. I never saw a finished comment on it other than my own.... ?
hey Rooster, I did it too. Works well. :)
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PlinytheWelder
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Re: Would the Express V1 benefit from this?

Post by PlinytheWelder »

For V1, I used one of these Teflon sockets:
[img:145:145]http://www.bella-audioparts.com/images/ ... socket.jpg[/img]


I think it cost about $10 on ebay. It seems to work well at limiting microphonics.
Last edited by PlinytheWelder on Sat Apr 02, 2011 6:14 pm, edited 1 time in total.
Gary
1dallek1
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Re: Would the Express V1 benefit from this?

Post by 1dallek1 »

M Fowler wrote:Did you steal that from a plumber it looks like a copper reducer fitting. :)
no seriously its solid inside just a strait hole the size for a tube. to me this item offers heat dissipation and em shielding, 2 things on my list. i don't see where dampening is really answered. the silicone sandwich, (isn't it a teflon sheet), is a concept i'm going to play with. but im afraid of things with play in it. My first stab at this years ago (V1 shielding) was to use a mesa sp12ax7a in v1, mesa recommended it at the time because it had the shrink shielding built in and they claimed a high quality tube against microphonics. it was a cheep mod and i had no complaints with the tube so i've used them. after getting the fethead and being very impressed by it I checked their line and spotted the ring right off. they have a bunch of rings mostly for show but this one is is it, form and function its a winner. i would go so far as to say this should be on all v1's and maybe all preamp tubes that fit this item. i dont think this would be needed for power tubes, anyone ?
ns
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rooster
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Re: Would the Express V1 benefit from this?

Post by rooster »

Ron - Oh, yeah, I see. Looks good. Its funny how some folks I run into seem very concerned about how low my tube sits into the chassis - and even say that they would prolly never use the device because the V1 is hard to remove. .....Which is goofy to hear because I have managed to pull the tubes at will. But you know, some folks would reject a Lamborgini based on MPG. :lol:

Still, it is intersting to see that particular reaction sometimes. For me, knowing the difference that the dampening unit makes in the Express, well, I couldn't go back. 8)

As to the top mount style, hm, I think you might want to revamp to the bottom mount style. It just works so well.

As to the teflon socket. !! Man, you find all the wild stuff! I would have to say that I can see where this could help things a bit, but it still can't keep up with this little iso dampener. Geez, maybe the two combined would be the ultimate thing. :shock:
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PlinytheWelder
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Re: Would the Express V1 benefit from this?

Post by PlinytheWelder »

Yeah, I followed this thread and looked up the iso damper before I built mine and it really seems like a fine product and it looks really cool ,too.
OTOH, I have a pile of red silicone O-Rings from McMaster.com and they work pretty well, too.

That teflon socket was a real PITA to solder with the pins so close together. You really got to watch out for shorts. If I had used more, I probably would have torn all my remaining hair out....

It's funny, I recently worked on an old Gibson amp from the early 60's and they had the V1 socket mounted on 4 little black rubber O-Rings for isolation.
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Gary
1dallek1
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oring

Post by 1dallek1 »

PlinytheWelder wrote:Yeah, I followed this thread and looked up the iso damper before I built mine and it really seems like a fine product and it looks really cool ,too.
OTOH, I have a pile of red silicone O-Rings from McMaster.com and they work pretty well, too.

That teflon socket was a real PITA to solder with the pins so close together. You really got to watch out for shorts. If I had used more, I probably would have torn all my remaining hair out....

It's funny, I recently worked on an old Gibson amp from the early 60's and they had the V1 socket mounted on 4 little black rubber O-Rings for isolation.
Nothing new under the Sun....
do you have the o-ring info it would be simpler to use your o-ring info than starting from scratch, please
i have a studio fix tube amps and love amp talk
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