View Single Post
  #20  
Old 07-13-2009, 09:13 PM
Geo's Avatar
Geo Geo is offline
Guru
 
Join Date: Mar 2005
Location: Greece
Posts: 3,942
Default

Quote:
Originally Posted by zenit52 View Post
Hi Geo,

Did you use in your electrostatic detector, one magnetic field detector circuit, yes?
You maybe use LM324 to preamp receive signals and use LM3914 to show signal value by LEDs, yes?
please tell us about your device performance...
I am waiting for your answer...

with best regards...
zenit52
Hi.
Sorry but i can't give the schematics.
Electrostatic detector is a simple RF ampl and after 4 stages i demodulate the signal. I amplifier it yet and i send it to a beep generator (one 555 and a buzer)
At the MFD i use the LM3915 as indicator and a buzer for beeps.
About performance.... i am yet under test. I take some beeps but i can't pinpoint the object.

Regards
__________________
Geo
Reply With Quote