[AMRadio] You must see this.

[Bry Carling]

DISCO LIGHTS?

Well, you could also just just hook them up to the audio from your 
rig set to 3885 and see lights flash as your pals modulate, LOL!

Funniest thing I ever saw was TV deflection coils connected to each 
side of a stereo amplifier where the speakers would normally  go.

You can get these cool dancing circles of RGB lights.
Left and right speaker out terminals get connected to the horizontal 
and vertical coils and then adjust the balance control, and volume 
levels for some nice deflection patterns!

I read about that in Practical Electroncis or Popular Electronics. 
I forget which. This was back in the 1970s when I was teaching 
high school electronics and TV repair.  The kids loved it!

It also helped them get more interested in using oscilloscopes and
understanding how they work.

73 - Bry, AF4K

On 11 Jan 2010 at 21:51, manualman wrote:

> This isn't any different then my disco light boxes of the 70's
> except my
> lights were red, blue, and green. Audio in, to color bandpass
> filter,
> then drive a triac that controls specific color lights.
> 
> And, if you like, install this program on your computer and when
> you
> play
> music on the computer, you can have a psychedelic light show on
> the
> screen.
> http://www.synthesoft.com/Hypno/Default.htm
> Pete, wa2cwa