https://twiar.net North America's Premiere Amateur Radio News Magazine Wed, 17 Dec 2025 03:25:56 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://twiar.net/wp-content/uploads/2020/05/cropped-twiarlogo512px-32x32.jpg https://twiar.net 32 32 https://twiar.net/2026/01/08/via-hackaday-magnetic-transformer-secrets/ https://twiar.net/2026/01/08/via-hackaday-magnetic-transformer-secrets/#comments Fri, 09 Jan 2026 03:45:38 +0000 https://twiar.net/?p=38117 [Sam Ben-Yaakov] has another lecture online that dives deep into the physics of electronic processes....]]> https://twiar.net/2026/01/08/via-hackaday-magnetic-transformer-secrets/feed/ 1 https://twiar.net/2025/05/07/via-hackaday-satisfy-your-high-voltage-urges-with-this-printable-flyback-transformer/ Wed, 07 May 2025 14:46:03 +0000 https://twiar.net/?p=31170 Sick of raiding old TVs and CRT monitors for flyback transformers to feed your high-voltage...]]> https://twiar.net/2025/03/24/via-hackaday-transmitting-wireless-power-over-longer-distances/ Mon, 24 Mar 2025 14:45:40 +0000 https://twiar.net/?p=29122 Proof-of-concept of the inductive coupling transmitter with the 12V version of the circuitry (Credit: Hyperspace...]]> https://twiar.net/2025/03/06/via-hackaday-line-power-with-no-transformer/ https://twiar.net/2025/03/06/via-hackaday-line-power-with-no-transformer/#comments Thu, 06 Mar 2025 16:45:50 +0000 https://twiar.net/?p=28588 Normally, when you want a low DC voltage from the AC line, you think about...]]> https://twiar.net/2025/03/06/via-hackaday-line-power-with-no-transformer/feed/ 1 https://twiar.net/2025/02/12/via-hackaday-using-guanella-baluns-as-impedance-transformers/ Thu, 13 Feb 2025 03:46:00 +0000 https://twiar.net/?p=27876 Guanella Impedance Transformer. (Credit: FesZ Electronics) Even before entering the mystical realms of UHF design,...]]> https://twiar.net/2024/11/22/via-hackaday-pushing-the-plasma-limits-with-a-custom-flyback-transformer/ https://twiar.net/2024/11/22/via-hackaday-pushing-the-plasma-limits-with-a-custom-flyback-transformer/#comments Fri, 22 Nov 2024 16:45:00 +0000 https://twiar.net/?p=24848 For serious high-voltage plasma, you need a serious transformer. [Jay Bowles] from Plasma Channel is...]]> https://twiar.net/2024/11/22/via-hackaday-pushing-the-plasma-limits-with-a-custom-flyback-transformer/feed/ 1 https://twiar.net/2024/08/27/via-hackaday-a-field-guide-to-the-north-american-substation/ Tue, 27 Aug 2024 10:23:00 +0000 https://twiar.net/?p=22778 Drive along nearly any major road in the United States and it won’t be long...]]> https://twiar.net/2024/03/03/people-baffled-by-mysterious-black-box-hidden-away-for-decades-in-1905-home/ Sun, 03 Mar 2024 19:03:00 +0000 https://twiar.net/?p=20078 A homeowner has been left baffled after he came across a mysterious electrical box in...]]> https://twiar.net/2024/02/22/via-hackaday-parts-we-miss-the-mains-transformer/ https://twiar.net/2024/02/22/via-hackaday-parts-we-miss-the-mains-transformer/#comments Fri, 23 Feb 2024 03:22:00 +0000 https://twiar.net/?p=19718 About two decades ago there was a quiet revolution in electronics which went unnoticed by...]]> https://twiar.net/2024/02/22/via-hackaday-parts-we-miss-the-mains-transformer/feed/ 1 https://twiar.net/2023/12/08/via-hackaday-powering-a-cavity-magnetron-from-a-battery/ https://twiar.net/2023/12/08/via-hackaday-powering-a-cavity-magnetron-from-a-battery/#comments Fri, 08 Dec 2023 20:37:42 +0000 https://twiar.net/?p=18676 While vacuum electronic devices have largely been superseded over much of consumer electronics, there’s one...]]> https://twiar.net/2023/12/08/via-hackaday-powering-a-cavity-magnetron-from-a-battery/feed/ 1 https://twiar.net/2023/12/01/via-hackaday-a-tube-guitar-amp-for-a-modest-budget/ Fri, 01 Dec 2023 15:12:00 +0000 https://twiar.net/?p=18561 There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube...]]> https://twiar.net/2023/11/12/via-hackaday-flipped-transformer-powers-budget-friendly-vacuum-tube-amp/ Sun, 12 Nov 2023 16:42:25 +0000 https://twiar.net/?p=18232 If you’ve ever wondered why something like a radio or a TV could command a...]]> https://twiar.net/2023/02/28/via-hackaday-toroid-transformers-explained/ https://twiar.net/2023/02/28/via-hackaday-toroid-transformers-explained/#comments Tue, 28 Feb 2023 19:52:03 +0000 https://twiar.net/?p=14604 HF radios often use toroidal transformers and winding them is a rite of passage for...]]> https://twiar.net/2023/02/28/via-hackaday-toroid-transformers-explained/feed/ 1