Hackaday (unofficial) September 13, 2023 3:00am Putting the Magic Smoke Back into a Dodgy Spectrum Analyzer #repairhacks #toolhacks #diagnosis #frontend #noisefloor #pindiode #repair #rigol #spectrumanalyzer #testequipment #hackaday posted by pod_feeder_v2 Putting The Magic Smoke Back Into A Dodgy Spectrum Analyzer The trouble with fixing electronics is that most devices are just black boxes — literally. Tear it down, look inside, but it usually doesn’t matter — all you see are black epoxy b…
Hackaday (unofficial) May 10, 2023 9:00pm Low-Frequency DC Block Lets You Measure Ripple Better #mischacks #bias #dcblock #filter #offset #pindiode #ripple #hackaday posted by pod_feeder_v2 Low-Frequency DC Block Lets You Measure Ripple Better We all know how to block the DC offset of an AC signal — that just requires putting a capacitor in series, right? But what if the AC signal doesn’t alternate very often? In that case, t…
Hackaday (unofficial) October 24, 2021 8:00pm Is a Diode a Switch? #parts #pindiode #rf #switchingcircuit #hackaday posted by pod_feeder_v2 Is A Diode A Switch? Many hardware people around these parts will be familiar with devices used as switches, using at least three-terminals to effect this, an input, an output and a gate. Typical devices that spring to…