A friend of mine is producing a series of HOWTO videos for an open source project, and discovered that he needed a better ...

PCB Piezotronics has introduced Model 377A13, a prepolarized, 1/2” pressure response type microphone, operating from ICP‚ sensor power, which offers extended frequency capability to 20k Hz (+ 2 dB).

Operating from ICP sensor power, the Model 377A21 prepolarized, ½-in. RI (random incidence) response microphone from PCB Piezotronics provides a linear frequency range of 4 Hz to 20 kHz (±2 dB). Most ...

Software defined radio and widespread software-controlled PLL synthesis for RF has been a game changer. Things like the RTL-SDR can be any kind of radio you like on almost any frequency you like. But ...

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