EEVblog

Mailbag Monday What should Dave do with his new lab internet bandwidth? Thermocouple Tutorial Arduino Tape Shield Arduino Thermocouple Shield MAX31855 Boldport PCBmodE Artistic PCB layout program System MERA-400 computer schematic Elecktronika MK-61 Russian Calculator Forum HERE Podcast: Download

Part 5 – Doug Ford explains the design of Electret Microphone circuits, and all the associated traps: Transconductance, correct biasing, and temperature effects, leaky JFETS, non-linear clipping & headroom, current noise and voltage noise, and pseudo bias resistors. Also, the non-intuitive concept of higher resistance = less noise, and how …

Why do digital oscilloscopes appear noisier than traditional analog oscilloscopes? PART 2 Learn how and why your digital storage oscilloscope display the noise that it does. In this 2nd installment Dave shows how waveform update rate affects the apparent displayed noise of a waveform, and alters the waveform update rate …

Part 4 of microphone technology with Doug Ford, former head designer at Rode Microphones. In this video Doug discusses how to design a condenser microphone, in particular the Rode Classic II microphone. Many things discussed include: External polarisation voltage generation and the relationship with sound pressure. The trade-offs involved in …

Part 3 of microphone technology with Doug Ford, former head designer at Rode Microphones. This video discusses both regular condenser and electret condenser microphone construction and physical properties. All videos in this series are HERE Forum HERE Podcast: Download