Doug DeMaw taught us that a key contributor to analog oscillator stability is the use of NP0 capacitors. As part of my effort to maintain the ability to produce analog, discrete component, coal-and-cap, chip-free oscillators, I recently went out onto the internet in search of an assortment of NP0 capacitors. Nightfire Electronics had just what I needed. I took their assortment and put it in a parts box for easy access.
Some really inexpensive ways to perhaps improve your shortwave listening
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By Jock Elliott, KB2GOM Just yesterday morning, I was reminded that
sometimes really small things can make a significant difference SWLing. So
here are s...
2 hours ago
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