Electronics Forums

  1. General Electronics Questions

    1. General Electronics Discussion

      General Electronics Discussion

      Talk about any general electronics topics, or subjects that aren't covered by the forum categories below.
      Latest: Not understandable ESR value of the capacitor. caps, Nov 18, 2018 at 1:23 AM
    2. Electronics Homework Help

      Electronics Homework Help

      Get assistance with your electronics homework and assignments in this section. No answers will be given, only guidance.
      Latest: I have to replace two burnt mosfets K5A50D in a toshiba hd tv.These mosfets are not available in the Veepee, Nov 16, 2018 at 4:54 AM
    3. Datasheets, Manuals and Component Identification

      Datasheets, Manuals and Component Identification

      Need more info on a component, such as datasheets or part numbers? Ask in here.
      Latest: Identify blown IC without circuit diagram 73's de Edd, Nov 18, 2018 at 1:25 AM

  2. Electronics Forums

    1. LEDs and Optoelectronics

      LEDs and Optoelectronics

      Please post any questions relating to LEDs, LCDs, IR, Laser, OLED or any other optoelectronics devices in this section.
      Latest: looking for SIMPLE 3 sequential fading led's circuit Harald Kapp, Nov 17, 2018 at 6:41 PM
    2. Microcontrollers, Programming and IoT

      Microcontrollers, Programming and IoT

      This category is dedicated to programming, microcontrollers (PICs, ATMEL, ARM, Arduino, ESP8266, etc...) and IoT devices.
      Latest: Programming languages and MC selection. Bluejets, Nov 18, 2018 at 1:05 AM
    3. Sensors and Actuators

      Sensors and Actuators

      Ask any questions relating to sensors or actuators in this section (motors, solenoids, servos, temp/proximity sensors, accelerometers, etc...).
      Latest: Resistive touch screen film as sensor. matmat9090, Nov 2, 2018
    4. Power Electronics

      Power Electronics

      A category for topics relating to power supplies, batteries, solar and other power related questions.
      Latest: Led resistor types dave9, Nov 18, 2018 at 12:23 AM
    5. Audio

      Audio

      Discuss any audio related topics in this category (amplifiers, speakers, etc...)
      Latest: MIDI Specifications for AllNotesOff tedstruk, Nov 18, 2018 at 1:46 AM
    6. Radio and Wireless

      Radio and Wireless

      Chat about radio/wireless projects and technology in here (wifi, bluetooth, RF, etc...).
      Latest: Creating RF Circuit without using RF modules davenn, Nov 13, 2018 at 9:29 PM

  3. Construction & Repair

    1. PCB Layout, Design and Manufacture

      PCB Layout, Design and Manufacture

      This section is for any discussion relating to PCB design and manufacture (EDA software, PCB prototyping, etc...).
      Latest: What app is good & free for electronic design on Android platform? Benny7440, Oct 20, 2018
    2. Project Construction Technologies

      Project Construction Technologies

      This area is to discuss any project construction tools and techniques, such as 3D Printing, CNC routers, laser cutters and general workshop questions.
      Latest: Electromagnet levitation circuit LED not glowing (*steve*), Oct 31, 2018
    3. Troubleshooting and Repair

      Troubleshooting and Repair

      Trying to repair an electronics item? Let us know about it in here and we'll do our best to help.
      Latest: common mode choke kellys_eye, Nov 17, 2018 at 6:59 PM

  4. Members Area

    1. Introductions

      Introductions

      Feel free to introduce yourself to the forum in this area, but please post questions in the other sections.
      Latest: Hi all, from a different tradesperson. ChristianB, Nov 17, 2018 at 9:46 AM
    2. Off-Topic Members Lounge

      Off-Topic Members Lounge

      Take a seat in the members lounge and post any off-topic threads in here.
      Latest: How an electromagnet can calculate kilogram duke37, Nov 17, 2018 at 2:42 PM
    3. Twilight Zone

      Twilight Zone

      If a thread breaks the laws of physics (i.e. claims to create free energy), we'll move it in to this section away from the rest of the forum!
      Latest: Is it possible to attenuate a signal not at the source davenn, Nov 10, 2018
    4. For Sale / Wanted

      For Sale / Wanted

      A place for non-commercial members to buy, sell or trade electronics related items.
      Latest: Sony Trinitron KV-25XBRII hevans1944, Nov 18, 2018 at 12:39 AM
    5. Project Log Discussion

      Project Log Discussion

      Discuss project logs in this forum (please use the main "project log" link on the top menu to create your own).
      Latest: Practical vacuum tube signal generator Miguel Lopez, Nov 6, 2018
    6. Resource Discussion

      Resource Discussion

      Discussion area for project logs, articles and circuits. All threads in this area are linked to a resource entry.
      Latest: Component suppliers Ian, Aug 14, 2018
    7. Announcements, Suggestions & Feedback

      Announcements, Suggestions & Feedback

      Please use this section for any feedback about ElectronicsPoint.com (but ask technical questions in other sections). Important announcements will also be made here.
      Latest: Somebody is using my email address (*steve*), Nov 4, 2018

  5. Archive

    1. Electronics Newsgroups

      Electronics Newsgroups

      1. General Electronics

      2. Electronic Basics

      3. Electronic Components

      4. Electronic Design

      5. Electronic Equipment

      6. Electronic Repair

      7. Beginner Electronics

      8. 8bit Microcontrollers

      9. Misc Electronics

      10. Hobby Electronics

      11. Electrical Engineering

      12. Boat Electronics

      13. CAD

      14. Security Alarms

      15. Lighting

      16. Home Power and Microgeneration

      17. Photovoltaics

      18. Lessons In Electronic Circuits

        1. DC Electronics

          1. Basic Concepts of Electricity

          2. Ohm's Law

          3. Electrical Safety

          4. Scientific Notation and Metric Prefixes

          5. Series and Parallel Circuits

          6. Divider Circuits and Kirchhoff's Laws

          7. Series-Parallel Combination Circuits

          8. DC Metering Circuits

          9. Electrical Instrumentation Signals

          10. DC Network Ananlysis

          11. Batteries and Power Systems

          12. The Physics of Conductors and Insulators

          13. Capacitors

          14. Magnetism and Electromagnetism

          15. Inductors

          16. RC and L/R Time Constants

        2. AC Electronics

          1. Basic AC Theory

          2. Complex Numbers

          3. Reactance and Impedance - Inductive

          4. Reactance and Impedance - Capacative

          5. Reactance and Impedance - R, L and C

          6. Resonance

          7. Mixed Frequency AC Signals

          8. Filters

          9. Transformers

          10. Polyphase AC Circuits

          11. Power Factor

          12. AC Metering Circuits

          13. AC Motors

          14. Transmission Lines

        3. Semiconductors

          1. Amplifiers and Active Devices

          2. Solid State Device Theory

          3. Diodes and Rectifiers

          4. Bipolar Junction Transistors

          5. Junction Field Effect Transistors

          6. Insulated Gate Field Effect Transistors

          7. Thyristors

          8. Operational Amplifiers

          9. Practical Analog Semiconductor Circuits

          10. DC Motor Drives

          11. Electron Tubes

        4. Digital Electronics

          1. Numeration Systems

          2. Binary Arithmatic

          3. Logic Gates

          4. Switches

          5. Electromechanical Relays

          6. Ladder Logic

          7. Boolean Algebra

          8. Multivibrators

          9. Counters

          10. Digital - Analog Conversion

          11. Digital Communication

          12. Digital Storage Memory

          13. Principles of Digital Computing

      Latest: Why would a DECT Panasonic cordless phone keep losing the wirelesslink? Danny D'Amico, Jan 10, 2014