[guest1632]

Ray,
       The shaft to the switch could be changed to a non metallic material.One of our club members tried a wood dowel in a passive instead of the metal shaft with very good success.Lower noise floor as RFI could not affect wood.The wood shaft also has different resonant characteristics which again lowered the noise floor.The connections were hot glued as they permanant.
        We constructed a Tiger Maple enclosure for the TVC as well as metal[maple was lined with foil to block EMI,RFI.
  The maple unit sounded better.What really did the trick was mounting the trannies on 3/8"TH. ebony.This move was shocking,there was just more music.
         It appears resonance has an affect on the trannies,in some fashion,next up is spruce coated with violin varnish as per Mother of Tone.The spruce woks real well UNDER components,NO FEET,with a flush mount.Try this with the TVC its very effective.
rollo

Hi Rollo,

Hmmm, Now is ebony a wood? If Ebony is one of those material that aren't that common, then it seems to me that we need to be looking at something else. I think the key here is to find something, or a combo of somethings that when put together are totaly innert. That way, no sound can create energies  that then need to be drained away. That wooden shaft would be a good suggestion to Nick. I suggested that he might want to use some form of shrinkrap on the shaft.  It's a cheap tweak, and would be worth the try.

If anyone hass an extra TVC, I'd like to listen to one, and take a look at it too. My present system and finances are just getting by at the moment. Otherwise, I'd be owning one of these TVC's too.

Ray

[guest1632]

Ray,
       The shaft to the switch could be changed to a non metallic material.One of our club members tried a wood dowel in a passive instead of the metal shaft with very good success.Lower noise floor as RFI could not affect wood.The wood shaft also has different resonant characteristics which again lowered the noise floor.The connections were hot glued as they permanant.
        We constructed a Tiger Maple enclosure for the TVC as well as metal[maple was lined with foil to block EMI,RFI.
  The maple unit sounded better.What really did the trick was mounting the trannies on 3/8"TH. ebony.This move was shocking,there was just more music.
         It appears resonance has an affect on the trannies,in some fashion,next up is spruce coated with violin varnish as per Mother of Tone.The spruce woks real well UNDER components,NO FEET,with a flush mount.Try this with the TVC its very effective.
rollo

Hi again,

Well, checking the net about Ebony, the wood, here is what I found.

Taken from "The WoodBox"
"Wood Description:
The various forms of ebony can vary from a pure black (gaboon ebony from Africa) to a dark chocolate brown with dramatic black or slightly grey and beige
streaks (macassar ebony from Indonesia). Larger picture above is the macassar ebony wood.

Today it is getting more difficult to get the pure black ebonys, and instrument makers are sometimes resorting to dying the wood to improve colour consistency.

Weight:
approximately 65+ lbs per cubic foot

Finishing:
The wood is very dense thus no fillers are necessary. It finishs to a beautiful sheen, with limited effort.

Machining:
Must have sharp tools, dulling will occur, but cuts easily with a bandsaw and turns beautifully on a lathe. Sanding works quite well with power tools,
but next to impossible with hand sanding (forget the cheap sandpaper, it won't touch it). Burning can happen if you exert too much pressure on a dull sanding
belt, so start with a fresh one.

If you are using it as an inlay with other open pored woods, you do have to be a bit careful because the fine dust can accumulate in the open grain and
alter the colour of the contrasting wood... make sure you use a compressor and blow off the surface well, prior to finishing ... rub with a solvent first
to check...

Fine Dust can be an irrantant so WEAR a mask!"

So there you have it.

Regards,
Ray

[rollo]

Ray'
       Where are you located,we could work something out.As far as ebony is concerned,since it is rare an entire enclosure would be impractical.Two pieces say 3x3 under the trannie would be effective.
rollo

[guest1632]

Ray'
       Where are you located,we could work something out.As far as ebony is concerned,since it is rare an entire enclosure would be impractical.Two pieces say 3x3 under the trannie would be effective.
rollo

Hi Rollo,

I am located here in Tucson Arizona USA. I don't at present have a TVC to work with.
You can reach me other than the circle at raybronk@comcast.net.

Ray

[Russell Dawkins]

"Plexiglass would be neat to see, but it's not entirely innert."

Ray,
Possibly I did not make myself clear - I am not talking of an acoustic consideration but an electrical one. The thinking is that the wires carrying the AC signal interact with the sheet metal. Eddy currents and all that.

[guest1632]

"Plexiglass would be neat to see, but it's not entirely innert."

Ray,
Possibly I did not make myself clear - I am not talking of an acoustic consideration but an electrical one. The thinking is that the wires carrying the AC signal interact with the sheet metal. Eddy currents and all that.

Hi Russell,

You are correct in both counts. That's why you'd use wood and plexiglsss together. If not plexiglass, then some other material in combination with wood.

If I had to use metal for my case, then it would be aluminum versus steel. Stainless steel however, is not magnetic. It would however be good to help reduce any RFI. I don't know if Nick tried mounting all the guts of the TVC in a steel case.

Regards,
Ray

[Russell Dawkins]

As far as eddy currents are concerned, aluminum is as bad as steel - whether the metal is magnetic doesn't enter the picture.
For a demonstration, take a strong magnet - Neodymium would be good - and slide it down a sheet of aluminum held on a steep angle (could be a framing square or similar). Notice how obviously the magnet slows. It looks like it's travelling through honey.

I don't understand this sequence:
"You are correct in both counts. That's why you'd use wood and plexiglsss together."

[guest1632]

As far as eddy currents are concerned, aluminum is as bad as steel - whether the metal is magnetic doesn't enter the picture.
For a demonstration, take a strong magnet - Neodymium would be good - and slide it down a sheet of aluminum held on a steep angle (could be a framing square or similar). Notice how obviously the magnet slows. It looks like it's travelling through honey.

Hi Russell,

So then what do you suggest for the material to construct a case with?

Ray

[Russell Dawkins]

Anything non-metallic, not non-ferrous. Could be plastic, wood (easiest) or glass. As I said, the rear connectors could be mounted in a small piece of sheet metal because with the wires positioned more or less perpendicular to the sheet, induced eddy currents would be minimal.

The worst scenario in this context is conductors lying parallel and in close proximity to sheet metal.

Check out what Dennis Morecroft, one of the first to even give credence to the notion of wires making any difference at all, says about this:
http://www.dnm.co.uk/materials.html

[guest1632]

Anything non-metallic, not non-ferrous. Could be plastic, wood (easiest) or glass. As I said, the rear connectors could be mounted in a small piece of sheet metal because with the wires positioned more or less perpendicular to the sheet, induced eddy currents would be minimal.

The worst scenario in this context is conductors lying parallel and in close proximity to sheet metal.

Check out what Dennis Morecroft, one of the first to even give credence to the notion of wires making any difference at all, says about this:
http://www.dnm.co.uk/materials.html

Hi Russell,

I was asking this because in a month or two, about to buy one of these amp kit. I might just make the case out of Plexiglass, and then cover it with a wood veneer.

Ray

[Whitese]

mine are shipping next week....yea baby aa

[Early B.]

mine are shipping next week....yea baby aa

Great.

When did you place your order?

[guest1632]

mine are shipping next week....yea baby aa

What version of the TVC did you get?

Ray

[StereoJoe]

Nicholas e-mailed me yesterday and reported that the TVC was shipped. Curious as to whether is beats my active pre (ca 3000$). Hopefully, sonic bliss awaits!

[guest1632]

Nicholas e-mailed me yesterday and reported that the TVC was shipped. Curious as to whether is beats my active pre (ca 3000$). Hopefully, sonic bliss awaits!

mine are shipping next week....yea baby aa

What version of the TVC did you get?

Ray

Hi, So what version of the TVC are you getting? the dual Vvolume control, double wiring etc.

Ray

[Whitese]

i didnt order double wiring..i wasnt aware of it i think at the time...I ordered DUAL MONO volume control with dual input rca and dual output rca (REF3)....I should have ordered with at least one xlr output and one input as my CDP has balanced outs and my mono amps have balanced inputs....but i figured for flexibility sake when  and if i change gear it would be easier..(but thats why adapters exist)..

[rollo]

Ray'
       Where are you located,we could work something out.As far as ebony is concerned,since it is rare an entire enclosure would be impractical.Two pieces say 3x3 under the trannie would be effective.
rollo

Hi Rollo,

I am located h









ere in Tucson Arizona USA. I don't at present have a TVC to work with.
You can reach me other than the circle at raybronk@comcast.net.

Ray

  Ray,
   thought you might be closer I'd bring the TVC over for a listen but 2000 miles is a bit much.If I was getting my second unit sooner I'd ship you the first one sorry man its going to be a while.
rollo

[rollo]

If anyone in NYC area would like a demo of TVC email me.[NOT A DEALER]
rollo

[guest1632]

If anyone in NYC area would like a demo of TVC email me.[NOT A DEALER]
rollo

Hey Rollo,

Will be interested in your take when you get the 2nd unit.  Perhaps you might want to do a tour with people putting up the money up front, so if they or someone ends up wanting it, they buy it. I don't have the bucks right now, otherwise, I'd certainly do it.

Regards,
Ray

[rollo]

Ray,
       Not a bad idea let you know when new TVC arrives.
     Tried something with TVC that had positive affect on sound.I removed the S/S cover and placed a large cigar box filled with SAND on top[fit perfectly,just inside recess for S/S top.Sound was fuller and still had the clarity we all like.So couldn't leave that alone so I removed the cones underneath and rested the unit directly on the wood plinth[SPRUCE] and well,well,well what do we have here my little dumpling.
      I will not tell you,give it a try and listen as I do not want to influence your thought process.Tweak away its fun and tutorial.
rollo