Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

My Plasma Speaker!

Tech_Junkie

Tech_Junkie

0
Joined
Jan 2, 2009
Messages
11,800
Points
0
jcranmer said:
Crap, my wish list keeps getting longer. Strangely enough it's starting to get more non laser stuff on it, then lasers. :)

1) WFTM
2) DIY Xray
3) Fire Piston
4) Plasma Speaker
Click to expand...

You call that a list? Mine is in the 60s. The trouble with me is I cant afford to buy everything for a single project. So every time I'm at the flea market/junk store/antique shop, I buy what I can for all the projects on my list. So I have a huge pile of parts, but not enough for a single project. I also need space, which right now is very limited.
 





Lase

Lase

0
Joined
Apr 27, 2011
Messages
757
Points
0
Fiddy said:
lol nyan cat!

It doesnt like bass very much, ill take a video of it playing some doof dooof tho.
Click to expand...

Put some Dubstep through it :na:

Is there a specific reason why it's not bass friendly? Or are all plasma speakers like that?

Lase
 
Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
They're all like that, it has to do with the method of sound production. Running two in stereo helps a lot but still <300Hz is attenuated.
 
Lase

Lase

0
Joined
Apr 27, 2011
Messages
757
Points
0
Sigurthr said:
They're all like that, it has to do with the method of sound production. Running two in stereo helps a lot but still <300Hz is attenuated.
Click to expand...

Can you keep running multiple units to get a 5.1 surround sound like effect? And have one specifically dedicated to bass only? Or would that not work?

Lase
 
Tech_Junkie

Tech_Junkie

0
Joined
Jan 2, 2009
Messages
11,800
Points
0
The frequencies these run at do not reproduce bass. Plus they are not that loud, so using it for a stereo speaker wouldnt work well.

I'm going to hook mine up to a horn to increase volume.

cygnethorn.jpg
 
Hiemal

Hiemal

0
Joined
Dec 27, 2011
Messages
1,443
Points
63
Lase said:
Put some Dubstep through it :na:

Is there a specific reason why it's not bass friendly? Or are all plasma speakers like that?

Lase
Click to expand...

The real reasoning behind why plasma speakers can't reproduce bass too well is mainly just because of how a speaker works;

A big subwoofer (BIG) moves a ton of air to make bass frequencies loud, using magnetism. It's just simple physics, right?

Well, a plasma speaker takes that a step further, using an arc to shake the air. Problem is, to make bass frequencies, you'd have to have a very large arc to move that same large volume of air like how sub woofers can.

They're absolutely wonderful for producing high frequencies, because there's no magnetism or slowing down associated with magnetism occurring here. Just an arc vibrating the air. :)
 
Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
Yep, it can be done with high current high voltage arcs though. Not something easily/cheaply made or something you want sitting there for a while unattended, haha.

IIRC >50kV @ 50mA (2.5kW!) reproduces bass frequencies very well and with ample volume. I saw it done with a 10ft TC once.
 
Last edited:
jcranmer

jcranmer

0
Joined
Mar 23, 2011
Messages
2,095
Points
63
Tech_Junkie said:
You call that a list? Mine is in the 60s. The trouble with me is I cant afford to buy everything for a single project. So every time I'm at the flea market/junk store/antique shop, I buy what I can for all the projects on my list. So I have a huge pile of parts, but not enough for a single project. I also need space, which right now is very limited.
Click to expand...

I hear you. I'm mostly in the same boat. I have a list of things to look for when I go to flea markets. The issue is really just finding anything. Everyone these days seem to be selling some new fad (quack) diet pill or some other "medical" product. Flea market's are like late night infomercials these days. I need to hit up a Hamfest, I haven't been to one of those in at least 10 years, but back them at least, they always had cool stuff.

My list would be much much longer if I really thought about it too long. Those were just the ones off the top of my head. :)

Le Quack said:
Unfortunately I'm going to have to put a hold on any other orders. I can't keep making these, because I need to source parts (i was using my stores for almost all of them, and they're running low in heatsinks, and flybacks)
Click to expand...

Bummer, but I couldn't afford to do anything right now anyway. I may pick up one of the kits sometime when I have more money, but I'd really like to just buy one fully assembled. I guess I'm just an instant gratification type of guy. :)
 
Last edited:
Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
Lol nice! At first I thought you were going to have that LED snowsuit XDDD.
 
Tech_Junkie

Tech_Junkie

0
Joined
Jan 2, 2009
Messages
11,800
Points
0
jcranmer said:
I hear you. I'm mostly in the same boat. I have a list of things to look for when I go to flea markets. The issue is really just finding anything. Everyone these days seem to be selling some new fad (quack) diet pill or some other "medical" product. Flea market's are like late night infomercials these days. I need to hit up a Hamfest, I haven't been to one of those in at least 10 years, but back them at least, they always had cool stuff.

My list would be much much longer if I really thought about it too long. Those were just the ones off the top of my head. :)
Click to expand...

Thats too bad. We have places like that too. Most of the best spots are in out of the way places. I'm lucky to live in New England. There is never a shortage of old stuff around here. Maine especially. There are miles of antique, and junk shops.
 
danefex

danefex

0
Joined
Aug 30, 2010
Messages
1,595
Points
63
HAAAAAAAAAAHHAAAAaaaaaa that video!!!! :crackup: :crackup:

ZOMG Fiddy, you're standing there like a stunt double from TRON just nodding to the awesomeness being displayed - seriously LOLZ, I love it! :crackup:
 
Last edited:
You must log in or register to reply here.




Top