theo wrote:Hello Harry. Thank you for the response (I am not looking every day on this site). Nice to see that I am not alone in my interests. Strangely I have this first link, although the content, found elsewhere on the net??? But thanks anyway.
I did use Chris longs web site on super sonic sound for the valve oscillator circuit may be it was that ,its easy to make .
Yes i wanted to see if i could get the crystal idea to work at first it sounds doable but vibrating the crystal to a point where its useable cause's heat .
As I understand, you did some experiments on this desing and prefere the Kerr Cel.
I think the kerr cell would be a better idea i was thinking the Jeffree was at the start but it is mechanical so this means friction heat only due to the levels the crystal has to work at ,not not some thing you would notice using a crystal for a oscillator but to move a mass is a different story ,it of cause worked in the past ,but for me i had a heating of the liquid problem .
Strange, as I understand correctly, the Jeffree must be far supperir to the Kerr.
I was thinking that too sounds cleaner a better idea may be i was over doing it with the levels to the crystal ? ,don't let me put you off if you want to try it ,it all got a little to messy for me to be useable .
Your experiments looks very nice! As I understand correctly, you never build a complete cell and tested only, the crystal’s?
Only what was shown i wanted to to see if i could see the effect in a liquid and if it could effect light levels
The delay experiment looks promising and will look in to that myself.
Yes do have a go its messy but fun experiments ...if using chris longs 30s magazine oscillator design you need a rather large crystal ...there are lower frequency versions used in vapor machines Ultrasonic Air Humidifier crystals i have forgotten the correct name its in my posts .
I used that delay line for something completely different. Look at;
http://www.theofaberalmere.nl/assets/delayline-vco.pdf design is published in electronics magazines unfortinaly only in Dutch. I always thought that the delay line itself, was glass and reflected the 4.43 wave. The transducers (crystal like) where mounted on the edges. When I tested the several delay lines, I found the bandwith rather large. More that 1MHz. And that must be, otherwise the color-signal will be limited. But that’s an other story all together. Did you ever manage to build a working cel, Kerr or Jeffree???
[/quote]
viewtopic.php?f=1&t=2477&p=22679&hilit=kerr+cell#p22679OH that reminds me you will find this of interest ! a delay line and modulation into a liquid
viewtopic.php?f=1&t=2709&hilit=delay+lineBack of my mind the Kerr cell with cane sugar sounds much safer than benzene to try ! ,i was looking to into where i could buy the cane sugar liquid and it is on Amazon ...just in my head at the moment on the to do list !