Two ultrasonic articles

[Max]

Originally Posted by Esteban

All the time I give hints and clues, but if you don't pay a minimun of attention I can't repeat it all the time.

As Mr. A. said to me: "If I give all the secret to others, of others will be the credit".

So now that I'm trying to realize one of your "designs" of LRLs... you refuse to give help! Fine!

Seems to me... that people here will read that as the fact this thing doesn't work detecting a coin at 7meters!

I was sure even before mounting that c.r.a.p. you have not provided any hint or advice to make it work... don't know why.

Now that I made that stupid circuit... that could be good as noise generator (maybe)... the hints and advices, the stamp-sized plans and circuits just vanished!?

Secrets ?

Which secrets... you say use IR , use toroids use bla bla... then when one "seriously" try to make one of these c.r.a.p. you don't make anymore such posts, uh ? Why ?

About AM radio... it's the one that let you hear that noise... or wanna use FM instead ???
Kind regards,
Max