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  • The Ultimate Smartphone VFO ESP32 & Si5351 Wireless Control

    The Ultimate Smartphone VFO ESP32 & Si5351 Wireless Control

    by mircemk
    mircemk
    A professional-looking VFO for your radio projects without spending a...
    3.9k 3
  • Symmetrische statische und dynamische  DC Last

    Symmetrische statische und dynamische DC Last

    by Taetz
    Taetz
    Static and dynamic DC load for symetrical and negative Power supplies....
    3.4k 2
  • 1 kHz Audio Generator mit bedrahteten Bauteilen

    1 kHz Audio Generator mit bedrahteten Bauteilen

    by Taetz
    Taetz
    1 kHz Audio Generator Through Hole Version
    2.0k 0
  • Simple SDR Receiver Using 2x NE612 - Dual Conversion

    Simple SDR Receiver Using 2x NE612 - Dual Conversion

    by mircemk
    mircemk
    This project demonstrates a simple yet highly effective SDR (Software...
    905 0
  • A portable triple power supply for the laboratory.

    A portable triple power supply for the laboratory.

    by HIRSCH Jean-Jacques
    HIRSCH  Jean-Jacques
    Having a triple 6 V and 20 V power supply (positive and negative) with...
    55.8k 6
  • Speaker Delay Circuit

    Speaker Delay Circuit

    by anto
    anto
    A simple circuit that avoids unwanted noise when turning the amplifier...
    2.4k 2
  • Waterflow Monitor
    Published in Elektor

    Waterflow Monitor

    by Gixy31
    Gixy31
    Remote display of domestic water meter with consumption analysis for q...
    13.5k 18
  • DIY Miniature X-Ray Machine using a TV Vacuum Tube DY86

    DIY Miniature X-Ray Machine using a TV Vacuum Tube DY86

    by mircemk
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    A simple rectifier tube can produce high-quality X-ray radiographs. It...
    781 0
  • Spectrum Analyzer

    Spectrum Analyzer

    by Wil Dijkman
    Wil Dijkman
    32 kHz bandwidth 24 bits ADC , so noise floor at about 120 dB Interfac...
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  • AM Modulator on Legacy FPGA Silicon

    AM Modulator on Legacy FPGA Silicon

    by ThomasW
    ThomasW
    Architecture and Feasibility Study of a High-Density 40-Channel AM Mod...
    734 0
  • Repurposing a HP5221B frequency counter as a nixie clock

    Repurposing a HP5221B frequency counter as a nixie clock

    by cvdo
    cvdo
    I had this beautiful HP frequency counter with nixie readout, but not...
    5.8k 4
  • DYI Nano Tesla Fluxgate magnetometer / Förster sonde

    DYI Nano Tesla Fluxgate magnetometer / Förster sonde

    by monk99
    monk99
    Curious to see tiniest magnetic signals in your environment? And make...
    4.5k 2
  • Page 1 / 193

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Latest Comments

The Ultimate Smartphone VFO ESP32 & Si5351 Wireless Control Nice Project.Seems it could  be using the Etherkit Si5351 Library.The Sketch compi
Nice Project.Seems it could  be using the Etherkit...

10 hours ago
Symmetrische statische und dynamische DC Last Gerber Files added
Dear Vincenzo,I just put the Gerber Files into the...

1 day ago
Symmetrische statische und dynamische DC Last gerber files
dear,is possible have a gerber files ?thanksvincen...

2 days ago
A portable triple power supply for the laboratory. New version 2 with a user friendly interface and external primary source
 The release of this project in August 2025 genera...

2 days ago
Speaker Delay Circuit Speaker Delay Circuit
Hi Guy, unfortunately, without the schematics for...

3 days ago

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