Simple CW 74HC240 Transmitter using buffer IC https://vu3dxr.in/simple-cw-transmitter-using-the-74hc240-buffer-ic/
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27MHz AM Transmitter Circuit for hobbyists https://vu3dxr.in/27mhz-am-transmitter-circuit-for-hobbyists/
Microphone Preamplifier with Audio Peak Limiter https://vu3dxr.in/microphone-preamplifier-with-audio-peak-limiter/
Microphone Pre-Compressor Circuit for SSB Transceivers https://vu3dxr.in/microphone-pre-compressor-circuit-for-ssb-transceivers/
The Polygar System in Madurai: A Comprehensive History of Power, Resistance, and Colonial Abolition https://heritagetamil.in/the-polygar-system-in-madurai-a-comprehensive-history-of-power-resistance-and-colonial-abolition/
The Polygar System in Madurai: A Comprehensive History of Power, Resistance, and Colonial Abolition
The Polygar system of Madurai was a network of 72 warrior-chieftain territories established by Viswanatha Nayak in the 16th century. Dominated by Nayak chiefs, it shaped southern Tamil Nadu for two centuries — until British colonial forces dismantled it through war, fort demolitions, and revenue reorganization between 1799 and 1805
Mastering Meshtastic on the 70cm Amateur Band (433 MHz) https://vu3dxr.in/meshtastic-433-mhz-mastering-meshtastic-on-70cm-band/
The zBitx v2 Has Arrived: Efficiency, Built-in EFHW, and a Wi-Fi Revolution https://vu3dxr.in/the-zbitx-v2-has-arrived-efficiency-built-in-efhw/
Khanfar Spectrum Analyzer: A Free RTL-SDR Tool Suite Worth Knowing https://vu3dxr.in/khanfar-spectrum-analyzer-a-free-rtl-sdr-tool-suite/
The Silent Revolution: DRM+ Radio in the FM Bands https://vu3dxr.in/the-silent-revolution-drm-radio-in-the-fm-bands/
Building a Quarter-Wavelength Coaxial Collinear Antenna for 2 Meters https://vu3dxr.in/building-a-quarter-wavelength-coaxial-collinear-antenna-for-2-meters/
