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???
01/10/06 16:14
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 		 #106975 - sampling
Responding to: ???'s previous message
Well Fourier theory tells, that this is possible.

No doubt about the Fourier theory , but how could that signal reproduced on the screen with only 2 samples ?

I should see the whole circuit first.

I'll put my effort to draw an initial schematic till the morning.

Best Regards ,
Farshid

List of 87 messages in thread
TopicAuthorDate
20Mhz Analog Input of a DSO            01/01/70 00:00      
   Link            01/01/70 00:00      
      why go for 20MHz            01/01/70 00:00      
         No 4 layer PCB & faster ADC available            01/01/70 00:00      
      Initial look ...            01/01/70 00:00      
         Trigger Circuit            01/01/70 00:00      
            Try of explaination            01/01/70 00:00      
               Badly drawn            01/01/70 00:00      
               Trigger and Amp            01/01/70 00:00      
                  Take care...            01/01/70 00:00      
                     Speed            01/01/70 00:00      
                        Like This ?            01/01/70 00:00      
                           Just wait...            01/01/70 00:00      
                              so what do they do there ?            01/01/70 00:00      
                                 Direct Digital synthesis            01/01/70 00:00      
                                    I just can think about one benefit            01/01/70 00:00      
                     Searching...            01/01/70 00:00      
                        Misinterpretation            01/01/70 00:00      
                           Proper Op-Amp            01/01/70 00:00      
                              AD844 has 50 Ohm input resistance on -            01/01/70 00:00      
                                 inverting input resistance            01/01/70 00:00      
                              specifications            01/01/70 00:00      
                                 sampling            01/01/70 00:00      
                                    Of course            01/01/70 00:00      
                                       Yes but            01/01/70 00:00      
                                          Exactly!            01/01/70 00:00      
                                 Preamp Initial Schematic            01/01/70 00:00      
                                    please resubmit the schematic in a forma            01/01/70 00:00      
                                       Real size button            01/01/70 00:00      
                                          not quite good enough            01/01/70 00:00      
                                             Higher Resolution            01/01/70 00:00      
                                       Resize            01/01/70 00:00      
                                          I do not care if it fits, I can move it            01/01/70 00:00      
                                             readable with gthumb            01/01/70 00:00      
                                             They are1N4148s            01/01/70 00:00      
                                             Problem is at your end            01/01/70 00:00      
                                                do you refer to the first submit            01/01/70 00:00      
                                                   Web Browser            01/01/70 00:00      
                                                   Both            01/01/70 00:00      
                                    Some changes needed            01/01/70 00:00      
                                       have to sleep a little ,will post later            01/01/70 00:00      
                                       I would try this            01/01/70 00:00      
                                          not an analog eagle            01/01/70 00:00      
                                             Why not            01/01/70 00:00      
                                                not objecting, just wondering            01/01/70 00:00      
                                          Updated Schematic            01/01/70 00:00      
                                             FETs            01/01/70 00:00      
                                                I remember going to the races on Thursda            01/01/70 00:00      
                                                   Yes, Nowadays they're held at friday            01/01/70 00:00      
                                             Answers            01/01/70 00:00      
                                                JFET Input good            01/01/70 00:00      
                                                   Deviations            01/01/70 00:00      
                                             Answers II            01/01/70 00:00      
                                                Corrected mistakes            01/01/70 00:00      
                                                   Answers III            01/01/70 00:00      
                                                      RE : Answers III            01/01/70 00:00      
                                                      new questions about PCB/Supply            01/01/70 00:00      
                                                         Answers IV            01/01/70 00:00      
                                                            RE : Answers IV            01/01/70 00:00      
                                          How do adjust the cap trimmers?            01/01/70 00:00      
                                             Thanks for everything            01/01/70 00:00      
                     Found these            01/01/70 00:00      
            inductance            01/01/70 00:00      
               Relays            01/01/70 00:00      
                  Reed-relay            01/01/70 00:00      
                     Reed Relays            01/01/70 00:00      
         Plays no significant role            01/01/70 00:00      
            but they are sensitive            01/01/70 00:00      
               Analog Mux            01/01/70 00:00      
                  today Philips announced this MUX            01/01/70 00:00      
                  Strac capacitance make the worse            01/01/70 00:00      
                     Sorry, stray not strac            01/01/70 00:00      
   a better aproach maybe            01/01/70 00:00      
      PLD question            01/01/70 00:00      
         Re PLD questions            01/01/70 00:00      
            link            01/01/70 00:00      
            Go for CPLD or not !            01/01/70 00:00      
               Not in that timescale            01/01/70 00:00      
                  so about 10K gates are needed ?            01/01/70 00:00      
                     part numbers            01/01/70 00:00      
                        Wow pretty expensive !            01/01/70 00:00      
                  I'll have to wait till tommorow            01/01/70 00:00      
   is this helpful?            01/01/70 00:00      
      good link            01/01/70 00:00      
   Heres a start            01/01/70 00:00      
   'must read'            01/01/70 00:00      
      What a great reference !            01/01/70 00:00      

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