[sdiy] Modular Video?

[Dave Magnuson]

At 01:14 AM 9/13/01 -0500, you wrote:
>> 
>> Why not convert an old television to vector operation?
>> 
>> 
>
>Bear in mind televisions generate lethal voltages, NEVER work on line
>operated equipment while it is plugged in.
>
>That is very easy to do for an old black and white TV. Just remove the yoke
>(deflection coils) from the back of the tube, but leave it connected. Place
>another yoke over the back of the tube and drive it with two channels of a
>stereo amplifier. The yoke have an impedance of 8-16 ohms and looks just
>like a speaker to the amp.
>
>This is covered in Electronotes #45 page 18 "Image Generation Using
>Electronic Synthesis Techniques" by Mark Goldstein
>
>For a picture of such a setup see
>
>http://www.musicsynthesizer.com/PAIA/paia.html
>


I have a question....  why specifically do you need a black and white TV?
Do color TVs work under a different principle? (I have a 13" color TV that
could stand a little choppin')

Thanks for the link!

Dave

Resonant Frequency:
resfreq at hoohahrecords.com
http://www.hoohahrecords.com/resfreq/index.html