Giantkiller moves forward into Full Heterodyning.

[bhaas]

Hi GK,

I'll get the steel. I went to Harbor Freight for the steel welding wire
I wanted but they didn't carry it anymore. I already got piles of magnets
and wire 

I'm gonna check out my scope and see if it still works. I'm not to good
with it but I'll get it figured out. I may be asking some dumb questions
here real soon, so please bear with me 

Speaking of dumb questions, I got one right now. I have a function generator
and the output is next to nothing. Are they suppose to be like that? Do I need
some kind of small amp for it? I got lots of 555 timers and transistors to blow up.
which I know how to hook up and run. But the FG seems so much easier.

I almost bought the PIC programmer they had at RatShack, but the PIC was
soldered to the board. Even though I don't know how to program it but it can't
be that hard and I have obscene amounts of time to learn so that's not a prob.
Well anyways, time to check out the scope and get the show on the road.

Brad

[giantkiller]

I have a simpson fg. I doesn't drive a load either. I got mine off of ebay. I think I got ripped. the TTL diminished under load. The sinewave has slight peaks. Oh well. google xr2206 kits. Build one then you're good to go.  I built 3 and have 12 xr2206 chips extra. Once you get set up, you fly.

I got pic, arduino, atmel programmers too. All the apps you need are in online libraries. Shouldn't have to do much.
Your scope looks heavy duty.

--giantkiller.

[bhaas]

Hi GK,

Do you mean heavy duty as in "Door Stop?" I have some scope vids
I watched and 1 channel seems to be toast. Couldn't test volts on a
AA 1.5V Bat. on chan A. And my FG is a POS and I bought both off e-Bay.

And they're both junk. I hate it when that happens. As you can see in these
pics the wave on the scope is all I get from the FG. I turn all the knobs and
the wave stays the same.

But on the bright side, I can blow up the last channel on the scope and not
worry about it. I guess I'll be buying another one. Probably off e-bay.
If at first you don't succeed, try again. 

I'll look up that kit to. Might as well get one or 3.
What's the best ATMEL programmer? Thanks.

I just looked up that kit. For $10 more I can get it already assembled.
http://www.electronickits.com/kit/complete/meas/fg500k.htm
I think I'll just get one. Have you blown any of these up? Do you drive
mosfets with it?

Brad

[PLUTOSBONE]

what i was getting at with the water coment is that vortexing water traps ether. the temperature change would effect the amount traped.
the human body lives everyday within these forces where your kick is coming from, and it will only need to change your body tem by a few degrease up or down and your a dead man. 
friendly frequencies ay! 

[Roaster35]

First post here. Have been lurking and reading for a couple of months now. Interesting stuff.
I do have some knowledge of ultrasound so will add my 2 cents worth.

@Aleks
Ultrasound velocity in steel is around 5920 metres/sec as a longitudinal wave and around 3400 m/s as a transverse wave. It won?t travel around a steel ring but will bounce around the inside reflecting off the sides, the energy will be attenuated in the process. If you do want the sound to travel around the ring (bounce around) it would be possible to do so from the outside circumferential surface not from the face as per your drawing. A ?normal? transducer in the location indicated would bounce the beam backward and forwards thru the side of the ring.
But I don?t see how anything useful could come from ultrasound this way, unlike what may happen with magnetic flux in a PMH, ultrasound attenuates significantly.

Regards R