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Categories

Hua Hin Weather Station 🌤
- coming soon ...
Projects (Antiques) 🦖
- Eprom Wave Player
- Frequency Counters • Accessories
- Function Generator (with XR2206)
- VHF Synthesiser with AD9859 :: 'RF-2859'
- Curve Tracer (simple)
- Curve Tracer (advanced)
- DCF-77 Signal Generator (obsolete)
- RFID
Micro Projects • Tools 🪓
- Atmega8 LED Panelmeter (U,I,°C,°F)
- Corona Customer Counter for a shop/place
- LCD Adapter • Interface
- Microphone Preamplifier
- ROTARY ENCODER (STEC11B03)
- SDRSharp and a DVB-T stick : a 20 EUR Spectrum Analyser ?
- UART - RS232 Bridge (ST232CDR)
- UART - USB Bridge (MCP2200)
- UART - ETHERNET Bridge (LANTRONIX XPORT)
- USB - InfraRed Transceiver
- USB - PLL / DDS - Interface
Arduino Projects 🛸
- Spectrum Analyzer • Measurement Receiver
- Network Analyzer
  - Shield TOBI : A 60 MHz, 80dB Scalar Network Ananlyzer
  - Arduino 400 MHz Scalar Network Analyzer 'Tobimod'
- Frequency Counter • Frequency Standard
- Low Frequency (AF) Generators
- High Frequency (RF) Synthesizer
- Power Supplies • Voltage Standards
- Measurement Devices • U • I • P • R • T
- RF Switches • Attenuators
  - Attamod, a 2 GHz 60dB Attenuator with the F1958
  - Switchmod, A double SPDT RF Switch with the PE4250
- Component Tester
- P-I-D and other Controllers
- What's All This '...mod' Stuff, Anyhow ?
- Additional Components for all '...mod' things
- Other Shields for Arduino
Arduino Final Projects : IPA's
- Ipamod 2022 : A high Precision Digital Capacitance Meter
- Ipamod 2023 : An Emergency 10 MHz Reference Source
Arduino Knowledgebase 🧾
- Arduino Code Snippets
- Overview I²C Addresses
Bluepill • Blackpill Projects 🛸
- - no have yet -
- - no have yet -
- - no have yet -
Teensy Projects 🛸
- ADS-B Signal Generator (Teensy 4.0)
Raspberry Pi Projects
- coming soon ...
Python Lab Experiments 🐍
- Basics like e.g. 'Hello Arduino' e.a.
- Long Term Datalogging to File (Wanmod)
- VCO Testbench (Supplymod, Levelmod, Countermod)
- Amplitude Response 10.7 MHz Bandpass (Ningmod, Wanmod)
- Frequency Spectrum HF-Bands (Wanmod)
- EMC Precompliance Testing (conducted, Wanmod)
- EMC Precompliance Testing (far field, Wanmod)
- EMC Precompliance Testing (near field, R&S FSP)
- Diode Characteristics (2 x Rigol DM3058E, Supplymod)
- Python and PicoScope™
  - ... we work on that ...
- Cookies • Breadcrumbs
  - Frequency Sweep with Ningmod
Power Supplies • Calculations
- Artificial Ground
- Power Supply Characterisation
- Power Supply Designer : Rectification
- Power Supply Designer : Linear Regulator
- Power Supply Gallery (Experience Database)
- Power Supply Ripple and Noise Measurements
- Yet another LM317 Calculator
- Feedback Voltage Divider Finder (LM2576 e.a.)
- High Voltage Power Supply (MC34063, step-up)
- Low Voltage Power Supply (MC34063, step-down)
- VB 408 Replacement
- Leomod, Power Supply for ±15 V, 1 A
- Powermod, a Power Supply with the LM317/LM337
- Samroimod - A 32 V / 1 A Power Supply
- Sungmod - A 270 V / 1 mA Power Supply
- Supplymod - A 20 V / 2 A Power Supply
- Thormod, a Power Supply for Photodiodes
- PETH-6 Power Supply • ± 15 V, 100 mA
- PETH-6 Power Supply • +7.5 V, for Arduino / Genuino
- PETH-20 Power Supply • ± 15 V, 600 mA
- PETH-30 Power Supply
- PETH-40 B3 Power Supply ±15V, 1200 mA
- PETH-40-HAM Power Supply • ± 15 V, 1.5 A
- PETH-49 Power Supply • 1 ... 19 V, 2 A
- PETH-200V - High Voltage Poweer Supply
- PETH-581 Power Supply • Buck Conv. with Linear Afterburner
- PETH-1074 Power Supply • Step-Down with an LT1074
- PETH-8093 Power Supply • Step-Down and linear regulation
- PETH-9910 Power Supply • 8 ... 16 V, 10 A
Amplifiers • Calculations
- BJT Buffer Amplifier Designer (Collector Feedback Bias)
- BJT Buffer Amplifier Designer (Base Bias Network)
- BJT Buffer Amplifier Designer (Voltage Feedback Bias)
- BJT Buffer Amplifier Designer (Emitter Feedback Bias)
- Broadband VHF Power Amplifier, 3 ... 540 MHz, 1.5 W
- Broadband UHF Preamplifier, > 3 GHz, 20 dB, NF 2.4 dB
- Broadband UHF Amplifier "BONLab-81", 10 dB, +19 dBm
- Broadband Measurement Amplifier, +13 dBm, 4 GHz
- Broadband Power Amplifier, 1 Watt from 2 - 2500 MHz
- Broadband LNA with the QPL9547 - 100 MHz ... 6 GHz
- Broadband LNA with the BGA2817 - DC ... 2 GHz, 5 dBm
- VHF Power Amplifier with the M57762 - 1.2 ... 1.35 GHz, 1 W+
- VHF Power Amplifier with the TAT8888 - 50 ... 1000 MHz, 1 W
- VHF Power Amplifier with the RFPD3580 - 45 ... 1218 MHz, 5 W
- MAR, ERA, GALI Amplifier Bias Calculator
- Measurement Amplifier with the LMH6609 • Vu = 1000, 30 MHz
- Shortwave Amplifier with 2 x 2N2219A - 0.1 ... 50 MHz, 22 dB
- Shortwave Power Amplifier with MRF101 - 0.1 ... 50 MHz, 18 dB
- Sojamod, a 20 dB RF Amplifier up to more than 1.5 GHz
- Sojamod-AF, a 20 dB AF Amplifier Class-D
Opamp Circuits • Knowledge
- Cascading OPAMPs For Increased Bandwidth
- Cascading OPAMPs For Zero Offset AND High Power
- Maximize Bandwidth for cascaded Opamps
- Slew-Rate Considerations
- Maximum Output Voltage vs. Frequency
- Choosing the right OPAMP to drive an ADC (SAR ADC)
- Bipolar Voltage to Unipolar Voltage ADC Driver
- Unipolar Voltage to Bipolar Voltage DAC Circuit
- Differential Amplifier
- Inverting Amplifier
- Inverting Comparator with Hysteresis • Schmitt-Trigger
- Non-Inverting Amplifier
- Non-Inverting Comparator with Hysteresis • Schmitt-Trigger
- Summing Amplifier
- Remembering Robert A. Pease, aka "RAP"
Antenna Designer 📡
- Antenna Selection Guide
- Antipodal Vivaldi Antenna Designer
- Bi-Quad Antenna Designer
- Bowtie • Batwing • Butterfly Dipole Calculator
- Cantenna Calculator
- Discone Antenna Designer
- Dipole Calculator - folded
- Dipole Calculator - straight
- HB9CV Antenna Calculator
- Helix Antenna Calculator
- Helix Antenna with Match Calculator
- J-Pole Antenna
- Lambda/4 Groundplane Designer
- Logarithmic Periodic Dipole Antenna Calculator
- Magnetic Loop Antenna Calculator
- Microstrip Patch Antenna Calculator
- PCB Loop Antenna Calculator
- Wokatenna Design
- Yagi Uda Antenna Designer (NBS Tech. Note 688)
- Yagi Uda Antenna Designer (Rothammel/DL6WU)
Filter Designer (Audio, AF)
- Lowpass Filters
- Bandpass Filters
- Highpass Filters
- Band Reject Filters • Notch Filters
Filter Designer (Radio, RF)
- Lowpass Filters
- Bandpass Filters
- Highpass Filters
- Band Reject Filters • Notch Filters
PLL, VCO, DDS, Oscillators
- ADF 4350 Module
- A 100 MHz Reference Frequency Source, locked to 10 MHz
- A 100 MHz Reference Frequency Add-On, DIL-28 Formfactor
- A universal VCO Board - MC100EL1648DG and PGA-103+
- A universal XCO/PLL Board - NB3N501/502/511
- Injection Lock Oscillator with PLL (and a NB3N502)
- MEMS Oscillators - SiT8008/SiT8208/SiT8209
- The Mobile Emitter
- DDS Synthesizer - with AD9851, ≈70 MHz
- Low Noise DDS Daughterboard - with AD9859, ≈ 160 MHz
- RF Reference Source - for Powermeter Calibration
- 4046 VCO Calculator
- Mini Synthesizer with 74HCT9046A
- PLL Loopfilter Designer, 2nd and 3rd order
- PLL Divider Calculator
- NE 555 Oscillator - Single Frequency
- NE 555 Oscillator - Frequency Range
- NE 555 Monoflop
- RC HCT Inverter Oscillator
- Wien Bridge Oscillator
- XCO3 - A low cost Crystal Oscillator Module
- Circuit Collection : Oscillators
Mixer • Freq. Converters
- How to measure Mixer Characteristics
- A Mixer Tinkerboard for those ADE-xxx from MCL
- A Mixer Tinkerboard with the venerable NE/SA 612
- Universal Frequency Converter with the Si564
- A broadband Phase-Shifter for IQ Mixing Applications (ECL)
- An RF Phase-Shifter for IQ Mixing Applications (LVC)
- Transmod, shifts 6.8±1 GHz to 1.0±1 GHz.
- UpConverter for SDR, Callisto e.a.
Noisy Things
- Noise • Introduction
- Calibrate your Noise Source. ENR calculator.
- Cascaded Noise Figure Calculations
- DIY Noise Source with the BFR92
- DIY Noise Source with 2 x GVA and 2 x PAT - ENR : 12.0 dB
- DIY Noise Source with 2 x GVA-81+ - ENR : 21.43 dB @ 1.0 GHz
- DIY Noise Source with 3 x GVA-81+ - ENR : 24.44 dB @ 1.0 GHz
- DIY Noise Source aka Ghettoblaster 555
- EMI Powerline Schnüffelstück
- How to Measure the Noise Floor of Your Spectrum Analyzer
- Magnetic Field Probe up to 3 GHz
- Noise Figure Measurement using the Gain-Method
- Noise Figure Measurement using the Y-Method
QO Toolbox 3599 - Radio
- Bias - Tee
- Bias - Tee, Broadband and Commercial
- Coupled Resonator L-C Bandpass
- DC-Block
- Diode RF Detector
- Equalizer • Slope - Compensator
- Logarithmic Amplifier with the AD8307
- Lowpass, 9-pole, L-C
- Lowpass, Highpass using Würth Power Inductors
- Magnetic Field Probe up to 3 GHz
- Prescaler :2 :4 :8 :10 :20 :40 :80 MC12093 MC12095 MC12080
- 6.5 GHz Prescaler :1 - :17 with the HMC705LP4
- Resistive Power Split, DC - 3000 MHz, 9.5 dB, 3 Way
- Wheatstone Bridge Power Split, 1 - 1000 MHz, 6 dB, 2 Way
- RF Limiter
- RF Switch - with the JSW2-63DR
- RF Switch - with the PE4250
QO Toolbox 3599 - Audio
- Booster (Amplifier) for Red Pitaya e.a.
- Ground-Breaker
- LISN - Line Impedance Stabilization Network
- Quantum Computer Arithmetic Unit : Adder
- Quantum Computer Arithmetic Unit : Subtractor
- Quantum Computer Arithmetic Unit : Inverter
- Quantum Computer Arithmetic Unit : Multiplier
- Quantum Computer Arithmetic Unit : Divider
- Transient Limiter
QO Basics • Photodiodes
- Photodiodes for Physicists
- Photodiodes for Electronics Technician
- Photodiode Opamp Amplifier • Transimpedance Amplifier
- Diodemod : for DC Characterization of Photodiodes
- Photomod : a Gain / Phase Analyzer for Photodiode Amplifiers
- External Ressources : a list of links ...
Components • Networks 🧲
- Resistors, NTCs
- Capacitors
- Inductors, Transformers
- Directional Couplers
- Microstrip
  - Microstrip Impedance Calculator
  - Microstrip 90° Corner Calculator
- Networks (mostly RF)
- SWR • Return Loss Bridges
- Coaxial cable Calculator
- Dielectric Coaxial Resonator
- Choose the right Fuse (without confuse :-)
- Heatsink Calculator
Conversions 📏
- Adding Up Multiple Carriers
- AWG • Metric Conversion
- Noise Figure • Temp.
- Reflection Coefficient to Impedance Converter
- VSWR to Return Loss (dB) Converter
- Return Loss (dB) to VSWR Converter
- Power Conversion : dBm - volts - watts
- Phase Noise to Phase Jitter Converter
- Phase Jitter to Phase Noise Converter
- ppm to Hz Converter
misc. Calculations 🖩
- Pathloss / RSSI
- Missmatch Loss
- IP3 / SFDR Calculator
- IP3, IP2, 1dB Comp. SFDR Visualizer
- SOA Diagram Drawer (Safe Operating Area Visualiser)
Hardware • Software 🖫
- DIY Soldering Tip Stand for SMD Tips
- Must-Have favourites (Windows)
- CodeVisionAVR Tools • Snippets
  - LCD Custom Character Code Generator
Datasheets • Manuals
- Datasheet Collection of our Projects
- FLUKE Service Manuals
- HP Service Manuals
- Papers of Changpuak
- Engineering Formula Collections / Goodies
Tutorials • DHE
- Make your own frontpanel with Gedakop ®
- Klirrfaktor
- Mean Time To Failure • Reliability Considerations
- PLL Seminar
- Engineering Formula Collections / Goodies
- Dr. Hat Electronics
Troubleshooting • Repair 🔧
- A DS1307 (I2C RTC) displays 165.165.XXX
- Autopsy of a Thorlabs PDA8GS
- UT803 :: Let's get serial
- UT803 :: Let's talk to an Arduino/Genuino
- Trouble with that Foldback Current limiting

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MORE INFORMATION

Info

เราจะทำแบบวิศวกรผู้ยิ่งใหญ่

21. December 2024

MUST-Have

RF-Vademecum
adubli

NXP RF-Manual
adubli

Patent on Rain-Making
adubli

AppCAD

RF Sim 99

YOU RATED THIS ...

avg = 0.0 , n = 0

MERRY CHRISTMAS

index.php 6513 Bytes 30-10-2024 12:52:36

✈ Welcome to the ELECTRONICS-LAB.

An archive of useful, funny and educational projects. Forever free.

We tested hard to make this information reliable, but since the Commodore 64 era we know, that "garbage in" results in "garbage out". Feel free to contact the webmaster if you think something may be added or updated or corrected or deleted. What you see here is just what one person hacks together on rainy sundays ...

Use the menu on the left or search for specific keywords ...

The latest Additions / Updates :

A high isolation broadband Power Split / Combiner is alive Thu, 12 Dec 2024 12:12:38
Yet another building block tracked down
The Powerline Schnüffelstück works beautiful. Wed, 26 June 2024 19:59:59
Now you can find EMI polluters on the Powerline
An easy to build Noise Source has come alive. Wed, 19 June 2024 19:59:59
With a 3 dB Attenuator, it delivers an ENR of 25.85 dB @ 1.5 GHz.
Noise Figure Measurement using the Gain-Method Thu, 13 June 2024 23:59:59
Comes with a Manual, Setup and Online Calculator.
Noise Figure Measurement using the Y-Method Thu, 13 June 2024 22:09:09
Comes with a Manual, Setup and Online Calculator.
The Noise Source ENR Calculator works nice. Tue, 11 June 2024 19:09:09
For your DIY Noise Source. With manual / setup.
The Sathanimod works nice and goes ON AIR :-) Wed, 27 March 2024 09:09:09
This is an FM Radiostation with the Si4713
The SWR Bridge with the AD8307 works great ! Mon, 26 February 2024 12:13:14
From 1 kHz to 1 GHz :-)
The Transmod finally works nice and goes online. Wed, 24 January 2024 12:13:09
This is an Arduino based 6.8 GHz Downconverter.

t₁ = 6736 d

t₂ = 360 ms