Robert,
Thats a pretty low voltage to detect with just a simple diode probe. Probably will need a VHF wideband front end amplifier for best results.
My two cents worth,
Steve G
Search found 326 matches
- Wed May 14, 2008 2:22 pm
- Forum: General Discussion
- Topic: Simple Circuit could use improvement
- Replies: 41
- Views: 17266
- Wed May 14, 2008 5:09 am
- Forum: General Discussion
- Topic: Explain this transformer phenomenon..............
- Replies: 10
- Views: 6698
- Tue May 13, 2008 5:28 pm
- Forum: General Discussion
- Topic: Explain this transformer phenomenon..............
- Replies: 10
- Views: 6698
Ian, Does the voltage go to zero if the filter capacitor is removed? If so then you need to isolate the filtered dc voltage more. Use another bridge rectifier across the 24 volt winding for this purpose. Suspect some leakage in the diode connected to the + rectifier output causing this problem Steve G
- Fri Mar 14, 2008 12:22 pm
- Forum: General Discussion
- Topic: Formulas & triangles...
- Replies: 21
- Views: 10574
- Fri Mar 14, 2008 7:43 am
- Forum: General Discussion
- Topic: Formulas & triangles...
- Replies: 21
- Views: 10574
- Tue Feb 12, 2008 6:25 am
- Forum: General Discussion
- Topic: Winbond ISD1700 series
- Replies: 2
- Views: 2050
- Mon Feb 11, 2008 4:27 pm
- Forum: General Discussion
- Topic: Winbond ISD1700 series
- Replies: 2
- Views: 2050
Winbond ISD1700 series
Trying to find out the frequency response or -3db roll off frequency using the Winbond ISD1760 chip with a 12khz sampling rate. Nothing is mentioned in the data sheets about this. Presently using the ISD2560 chip which has a 8khz sampling rate. Spec sheet for this chip says the -3db roll off is 3.4 ...
- Sun Jan 27, 2008 12:42 pm
- Forum: Robotics
- Topic: Looking for a microcontroller, need suggestions.
- Replies: 13
- Views: 12802
I would recommend the Picaxe family of micros. Chips have built in radio and infrared xmit /receive capabilities. All programming software is free and doesn't require a compliler. Here's the link for all you need to get started.
http://www.rev-ed.co.uk/picaxe/
Steve G.
http://www.rev-ed.co.uk/picaxe/
Steve G.
- Sun Jan 13, 2008 2:56 pm
- Forum: General Discussion
- Topic: Need a simple circuit for detecting a TTL-level square wave
- Replies: 7
- Views: 4320
- Mon Jan 07, 2008 5:43 pm
- Forum: General Discussion
- Topic: ultra low power mic preamp
- Replies: 4
- Views: 2759
- Thu Jan 03, 2008 3:33 pm
- Forum: General Discussion
- Topic: Circuit Question
- Replies: 6
- Views: 3387