Hacking & Experiments

Dave investigates how the front end bandwidth limiting works on the Rohde & Schwarz HMO1202 series oscilloscope. Is the bandwidth limit set just by the LMH6518 front end Variable Gain Amplifier chip through the SPI bus? See the extended 50 minute version HERE that has much more detail and mucking …

How may photons does a LED emit at very low currents? What is the lowest current where a LED will actually emit photons? Dave does some measurements to answer this quantum physics level stuff! Podcast: Download

Dave investigates the piezoelectric effect in multi layer chip capacitors (MLCC’s). In this case, on the backlight inverter on his own BM235 multimeter. Forum HERE LCD Driver DATASHEET Capacitor Tutorial VIDEO Podcast: Download