Custom inert gas filled glass containers (plasma balls) / Sale and Trade / Forums

Forums

4hv.org :: Forums :: Sale and Trade

« Previous topic | Next topic »

Custom inert gas filled glass containers (plasma balls)

1 2 next

Move Thread

LAN_403

zrg

Wed Sept 12 2012, 09:50PM

Registered Member #4762 Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93

Hi everyone.
I've been poking around the process of crafting custom plasma balls for last year and finally achieved nice results that can be placed for sale.
Like those Bill Parker's Light Sculptures, but due to lack of glassblower tools much more simple ones, without central electrode and power supply.
Basically this is a sealed chemical flask with inert gas at low pressure inside, which ignites and glows nicely near CW or semi-CW Tesla coil (no pulsed coils like SGTC or DRSSTC, they will destroy these plasmaballs).
Available sizes are from 5-6 cm dia. to 15-20 cm dia. spheres, tubes, ampoules and some other forms.
Available gases are argon, krypton, neon, xenon, pure and combinations (with each other, organics and halogen)
This particular one is xenon with organics (intense green colour), 11*20 cm size.
If anybody will be interested, I'll post more of them.
Link to Ebay here

Shipping from Russia (so prepare for long time waiting).

Shrad

Thu Sept 13 2012, 08:47AM

Registered Member #3215 Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780

I've wanted such a thing for a long time... don't you have feedthroughs for such balls?

no way you can incorporate a halogen bulb socket like GU10 bayonets with a central electrode inside those bulbs?

if so, I'd be interested...

Conundrum

Thu Sept 13 2012, 09:56AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062

Thats pretty badass.
Can I send you a klein bottle originally from one of those "dancing ballerina" toys? its glass but no visible damage and I can pack it securely.

$?

I also came up with a way (tested and working) to convert two laptop inverters of the piezo variety into a plasma globe supply.
Tested with one of those neon filled bulbs and it works well, draws less than 20mA from a PP3 so enough to last an entire night of Halloween partying without running out

Catch is, I need some dual MOSFETs and they are being held up in Customs.
The inverter circuit I designed is based on a modified Royer inverter but using tuning ghetto diodes (aka blue LEDs) to fine tune
the circuit and keep it in acoustic resonance even with the output heavily loaded.

-A

Sigurthr

Thu Sept 13 2012, 01:07PM

Registered Member #4463 Joined: Wed Apr 18 2012, 08:08AM
Location: MI's Upper Peninsula
Posts: 597

This is fantastic! I'm having a glass worker make me some 1.25" dia tubes of common gasses (Ne, Ar, He), but this is the best he can do. 10" x 1.25" = $90. Any other gasses from him would require an expensive investment fee (as he has no use for it) and he cannot do balls/globes at all.

I'd love to buy one of yours! Will you have any pure Xenon or Krypton ones for sale soon? I can pay immediately with PayPal.

zrg

Sat Sept 15 2012, 07:44AM

Registered Member #4762 Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93

Shrad wrote ...

no way you can incorporate a halogen bulb socket like GU10 bayonets with a central electrode inside those bulbs?

Sorry, but glass-metal welding is still too difficult for me, all attempts to make vacuum-sealed electrodes have failed.

Conundrum wrote ...

Can I send you a klein bottle originally from one of those "dancing ballerina" toys? its glass but no visible damage and I can pack it securely.

Dont't really get what is that thing, please show some photos is possible.

Sigurthr wrote ...

Will you have any pure Xenon or Krypton ones for sale soon?

Yeah, I have both already, just need to make photos and place them on Ebay.

zrg

Sun Sept 16 2012, 08:02PM

Registered Member #4762 Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93

If anybody's interested, I also have USSR neon-filled spectral tubes, which glow really nice.
#1: http://ebay.com/itm/110952799958
#2: http://ebay.com/itm/110952798065

These are numerous, if you want, say, 10 or 20, pm me here or on Ebay for shipping discounts.

Shrad

Mon Sept 17 2012, 06:30AM

Registered Member #3215 Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780

I was thinking of using the end of a dead glass lamp, and welding the lamp base glass-to-glass, this way you can use the original glass to metal seal of the lamp

zrg

Thu Sept 20 2012, 02:59AM

Registered Member #4762 Joined: Sun May 06 2012, 05:59PM
Location: Russia
Posts: 93

That is an option, but there will be a problem with glass type matching. Wrong matching equals glass cracking...

I've placed another one for sale. Similar to the green one, but of white color (pure xenon).

Ebay:

Conundrum

Sun Sept 23 2012, 05:13PM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062

What about the method used on the Russian era GM tubes?
Essentially they "fill" the glass tube with low melt alloy and join a wire to that, I think they used an indium alloy of some sort as the tubes say not to solder them.

Wolfram

Wed Sept 26 2012, 10:51PM

Registered Member #33 Joined: Sat Feb 04 2006, 01:31PM
Location: Norway
Posts: 971

I'm a big fan of your work. I've been watching your youtube videos for a while.

How much would a tube like the one at 1:48 in this video

cost? The effect is amazing, is the pressure and frequency very critical to get this effect?

1 2 next

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob