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  • resistor for led
    Which Resistor to Use with this LED?

                    This is a very simple question, so simple that we usually don’t think too much about it and use whatever we...

    • Posted 1 day ago
    • 15
  • tektronix scope repair
    Tektronix 2440 Oscilloscope Repaired- Part 4

                  Here are the previous article: (Part 1) Today I opened the already completely repaired 2440 Tektronix Oscilloscope again to try...

    • Posted 1 day ago
    • 5
  • intercom repair
    FARFISA ART-482/1 door entry intercom repair

                    In the building where I live, among the various installed systems therein, there is a Farfisa door entry intercom. The system...

    • Posted 3 days ago
    • 26
  • 3d printer repair
    3D Printer Repaired

                  A workmate of mine teaches 3D printing courses. In the classroom he has 3 set up for use with the students. At...

    • Posted 3 days ago
    • 4
    Philips MMS 430 Speaker Volume Control Broken PCB Replaced

                    These speakers are also been repaired by me earlier for the same problem but I have received this speakers again for...

    • Posted 5 days ago
    • 23
  • hp 3030 repair
    HP LaserJet 3030 – paper jammed

                  Today I got a call from a company and they have a HP LaserJet 3030 MFP who will not print and all...

    • Posted 5 days ago
    • 7
  • electronics courses
    Completed One to One Coaching In Electronics Repair

                  Just completed today a one to one coaching for a participant in the Basic Electronics Troubleshooting and Repairing Course. If you want...

    • Posted 1 week ago
    • 2
  • Tektronix 2440 Oscilloscope Repaired
    Tektronix 2440 Oscilloscope Repaired- Part 3

                Here is the part 2 article: Today I started with Calibrating the 500MS/s Tektronix 2440 Memory Oscilloscope. Something that was easier then I...

    • Posted 1 week ago
    • 30