Projetos de Circuitos Eletrônicos Diversos


  1. 12V DC electronic door chime
  2. 1uS light pulse descriminator plus F to V converter (PDF)
  3. 1uS light pulse receiver plus post amp (MISC)
  4. 741 Light Sensor
  5. A selection of robotics projects
  6. A two-way Morse practice set
  7. A Visual CW Zero Beating Aid
  8. An Inexpensive X-ray Machine
  9. Analog computer
  10. Analog opto-isolator
  11. Analog pulse counter
  12. APRS GPS tracker schematic (PIC16C73)
  13. Assorted digital circuits
  14. Basement doorbell beeper (PDF)
  15. Basic electronic circuits
  16. Basic op-amp circuits
  17. Bat detector
  18. Bat detector
  19. Bat detector (new)
  20. Bat detector microphone pre-amplifiers
  21. BayComm packet modem
  22. Biasing Op-Amps into Class A
  23. Black Light
  24. Bleeper box for time reference
  25. Broadband 2MHz optical fiber receiver (PDF)
  26. Broadband 5MHz optical fiber receiver (PDF)
  27. Build logic gates using discrete parts
  28. Build Your Own Digital Setting Circles For Your Astronomical Telescope
  29. Capacitance sensor
  30. Chaos generator
  31. Common Ground for Older VPW Circuit
  32. Computerize Your Room/Home
  33. Darkness monitor
  34. Digital Call Sign Annunciator
  35. Digital dial
  36. Dinsmore 1490 digital compass
  37. Discrete Bistable Flip Flop
  38. Discrete Set/Reset Flip Flop
  39. Doorbell for the Deaf
  40. Driving N-channel FETs from TTL
  41. Electric field disturbance monitor
  42. Electromagnetic field detector
  43. Electronic fish lure
  44. Electroscope
  45. ELF Monitor
  46. Experimental data transmitter for fiber optics
  47. Experimental fiber optic receiver
  48. Fantastic Atom Expander
  49. FCTS Project
  50. Flash slave trigger
  51. Fluid level detector
  52. Fogger smoke machine
  53. Full-duplex doorphone with 3 wires connection
  54. G Strain energy absorber
  55. Garmin GPS data interconnect
  56. Geiger counter
  57. Geiger counter
  58. Glitch detector
  59. Gold wafer (smartcard) programmer
  60. GPS receiver interface
  61. GPS receiver support kit
  62. Griffith Observatory Tesla Coil
  63. HamComm modem interface
  64. Hardware Random Bit Generator
  65. High Quality Intercom
  66. High-speed light receiver (PDF)
  67. Inexpensive APRS Weather Station
  68. Inexpensive seismometer project
  69. Insect Repellant
  70. Intercom circuit
  71. Intercom schematic
  72. Ion detector
  73. Ion detector
  74. Jacob's Ladder
  75. Large LCD Display Buffering Driver
  76. Lazer Tag Equipment Modifications
  77. Light detector
  78. Lightning Activated Camera Shutter Trigger
  79. Lightning Storm Detector
  80. LM 1800 FM stereo decoder
  81. Low-power optical interrupter (PDF)
  82. Magnetic Gun.
  83. Magnetic levitation circuit
  84. Magnetic levitation device
  85. Making a FRED photopopper
  86. MAX924 bar-graph level gauge
  87. Metal detector
  88. Miniature Self-Powered Autonomous Robot
  89. Miscellaneous simple circuits
  90. Mobile APRS / GPS tracking system
  91. Modulated light received (PDF)
  92. Monitor output from Motorola Oncore GPS engine in HP Z3801A in GPS Disciplined Oscillator
  93. Monostable Flip Flops (one shot)
  94. Morse Code Beacon Keyer
  95. Morse code display
  96. Morse Code Practice Keyer 1
  97. Morse Code Practice Keyer 2
  98. Morse monitor
  99. Morse paddle keyer
  100. Navigator 555A radio direction finder (RDF) circuit diagram
  101. Negative ion generator
  102. Nocturnal animals whisker
  103. Parasite zapper
  104. PE3342 Programmer Schematic
  105. PL tone generator (NE567)
  106. Plant watering watcher
  107. Popular Electronics Ultrasound Detector
  108. Power line FM intercom
  109. Pulse width modulators (PWM)
  110. Pulse width to voltage converter
  111. Random noise generator
  112. RDS Encoder
  113. Scaling ADXL50 accelerometer output
  114. Short-circuit beeper
  115. Simple BFO metal detector
  116. Simple event counter
  117. Simple metal detector electronic circuit
  118. Simple nitrogen spark generator (PDF)
  119. Smooth Tone Clickless CW Sidetone Generator
  120. Sound finding cricket
  121. Sound finding cricket with phase detector
  122. Speech recognition using HM2007
  123. Static Electricity / Negative Ion Detector
  124. Sudden Ionospheric Disturbance (SID) Receiver
  125. Suddent ionospheric disturbance (SID) receiver
  126. Talking Morse Code Practice Computer
  127. Tesla power receiver
  128. Text to speech converter
  129. The Aisin-Seiki GPS-Receiver (The "US$20 GPS")
  130. Three Power Supplies for the Garmin GPS-20 Sensor Board
  131. Time to dust indicator (PDF)
  132. Toggle Switch Debounced Pushbutton
  133. u-Blox GPS receiver board
  134. Ultrasonic dog whistle
  135. Ultrasonic generator
  136. Ultrasonic radar
  137. Ultrasonic sound receiver
  138. Ultrasonic switch
  139. Ultrasonic transducer oscillator circuit
  140. UV light box
  141. Variety of quick designs
  142. Vat detector (old)
  143. Very basic circuits
  144. Voltage Comparator Information And Circuits
  145. Walking robot
  146. Whistle responder

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