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LATEST ARTICLES
I’ve been working on a tripple rail supply for a amplifier project which requires +5/-5V/+18V for som opamps and a LM384 power amplifier. It’s inspired by Kent Stone’s +/- 15 Volt Power Supply and other similar projects.
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I've recently completed a 5F1 inspired amp. I've build a couple hifi tube amps before, but this is my first guitar amp. It's based on the 5F1 but with some modifications inspired by different sources, eg. Rob Robinette's site. Cabinet, chassis and turret board is all homemade. The speaker is a Jensen P10R.Power supply: The HT mains transformer is from Primary Windings and has a single 250V winding so I'm using a silicon bridge rectifier. I have added an extra CR filter so power to the output tubes is filter…
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On my house build in 1923 we have concrete cornices. Over time, however, these ornate elements can deteriorate due to weathering, structural issues, or simple wear and tear. Renovating concrete cornices is a crucial aspect of preserving the historical and aesthetic value of a building. As the picture show the corner is heavily deteriorated. Some common problems include: Cracks and Spalling: Exposure to weather elements, freeze-thaw cycles, and environmental pollutants can cause concrete to crack and spall, …
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