Skip to content
Wednesday, April 22, 2026
vu3dxr logo image

DXR Electronics Bits

DIY Antennas, QRP, SDR & Ham Radio Projects from VU3DXR

  • Home
  • Antenna Projects
    • HF
    • VHF/UHF
  • Circuit Ideas
    • FM Transmitter circuits
    • Mic Speech Compressors
  • SDR
  • Digital modes
  • Guides
    • Ham Radio Guides
  • QRP
  • Reviews
    • ATS Mini Radio
  • News
  • WebSDR
  • Contact Us
  • HTML Sitemap

Tag: Lamp Flasher

Explore DIY Lamp Flasher and LED Blinker circuits on VU3DXR. This tag features simple yet effective projects using the classic 555 Timer IC and transistors like the BC547. Access easy-to-follow circuit diagrams and breadboard layouts perfect for electronics beginners and hobbyists.

Incandescent Lamp Flasher Circuit Using 7555 Timer
Circuits DIY

Simple Incandescent Lamp Flasher Circuit Using 7555 Timer

August 6, 2025April 20, 2026PrabakaranComment(0)

Build a simple incandescent lamp flasher using a 7555 timer and MOSFETs. Ideal for DIY projects with adjustable flash rate and low parts count.

Incandescent Lamp Flasher
Circuits DIY Tools

Incandescent Lamp Flasher using IRF510 HexFET

July 13, 2025March 25, 2026PrabakaranComment(0)

The circuit Incandescent Lamp Flasher is built around two FETs, which are configured as simple astable multivibrator to alternately switch two lamps on and off.

DIY Antenna

  • FM Loop Antenna
  • COCO Antenna (VHF)
  • FBK Sleeve Antenna (VHF/UHF)
  • Shortened G5RV Antenna (HF)
  • High Gain Collinear Antenna(HF/UHF)
  • Popovic Antenna (HF/UHF)
  • Shortened EFHW (40-10M)
  • Shorty Forty Antenna (HF)
  • Indoor Antenna (40M)
  • 40m Vertical Antenna (HF)
  • Compact 40M HF Antenna
  • GM4JMU Shortened Dipole (HF)
  • Delta Loop VHF Antenna
  • Aperiodic Multiband Wire Antenna
  • Capacitor Loaded Shortened Dipole Antenna
  • HF Delta Loop Antenna
  • ZED Dipole Antenna (VHF)
  • Loaded Loop Antenna (HF)
  • Sleeve Dipole Antenna (VHF)
  • Twin Delta Loop Antenna
  • Broadband VHF Antenna
  • Shortened Inverted V antenna (HF)
  • Multiband G5RV Antenna

2M Antenna (13) Amateur Radio Projects (20) AM HF Transmitter (14) Antenna Projects (89) Audio Compressor (22) circuits (22) Compact Antennas (12) CW (16) digital modes (15) DIY electronics (17) DIY radio (12) ESP32 DSP Radio (21) HF wire antenna (19) Loop antenna (12) Microphone Preamplifier (13) Mike Compressor (18) QRP (13) radio (21) Software Defined Radio (26) transmitter (33) VHF/UHF Antenna (24)

  • Mastering Meshtastic on the 70cm Amateur Band (433 MHz)
  • The zBitx v2 Has Arrived: Efficiency, Built-in EFHW, and a Wi-Fi Revolution
  • STREAM1090 : Extending Your ADS-B Range with new demodulation
  • Khanfar Spectrum Analyzer: A Free RTL-SDR Tool Suite Worth Knowing
  • Radio Waves Weekly — Issue #013
  • The New Digital Frontier: Meshtastic vs MeshCore for HAM radio
  • The Silent Revolution: DRM+ Radio in the FM Bands
  • Meshcore for Ham Radio: A Simple Start
  • Antenna (107)
  • Articles (84)
  • audio (36)
  • Circuits (111)
  • CW (16)
  • Digital modes (18)
  • DIY (187)
  • DIY Video (3)
  • DRM (4)
  • Ebook (3)
  • Guide (46)
  • HF (112)
  • News (51)
  • Power & Battery (4)
  • QRP (37)
  • radio (85)
  • Radio Waves Weekly (13)
  • Reception (58)
  • Reviews (21)
  • Satellites (4)
  • SDR (33)
  • Tools (76)
  • Transmitter (43)
  • VHF/UHF (62)
  • Videos (14)


| Editorial by MysteryThemes.
  • Advertise
  • Contact Us
  • Copyright
  • Disclaimer
  • Terms and Conditions