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Mahmood Elnasser
10/31/13 13:32
Read: 974 times
Sacramento
USA


 
#190078 - even better
Responding to: Joseph Hebert's previous message
I remember in the early 90s when scopes were really expensive or when we couldn't afford one I built LED version of component tester using 2 LM3914s in dot mode and made them drive 10x10 LED matrix. one LM3914 for X-Axis and the other for Y axis. To my surprise it was perfect, battery operated and portable. I built one for myself and sold another one which made mine free. It was so much fun.
Mahmood

List of 18 messages in thread
TopicAuthorDate
Novel Oscilloscope Techniques      Joseph Hebert      10/30/13 13:57      
   Component tester        Mahmood Elnasser      10/31/13 01:05      
      Cool!      Joseph Hebert      10/31/13 10:19      
         even better      Mahmood Elnasser      10/31/13 13:32      
   Old school      Steve M. Taylor      11/01/13 15:14      
      RE: Old school      Andy Neil      11/02/13 05:19      
      Old School      Joseph Hebert      11/02/13 07:01      
         RE: those new fangled oscilloscopes with the cursors       Andy Neil      11/03/13 11:34      
            direct measurement      Joseph Hebert      11/03/13 15:41      
               Now that's Old School      Andy Neil      11/04/13 12:17      
      Old School      Joseph Hebert      11/03/13 19:26      
         Anochronisms      Andy Neil      11/04/13 12:19      
            of course        Erik Malund      11/04/13 20:01      
               RE: avoid writing a whole word       Andy Neil      11/05/13 11:36      
                  I know      Erik Malund      11/07/13 12:25      
                     Huh?      Michael Karas      11/11/13 08:20      
   PDF file      Joseph Hebert      11/03/13 16:28      
   Apparently I'm not the only one thinking this.      Joseph Hebert      11/04/13 08:35      

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