Reverse Engineering

Dave reverse engineers the XuanZu X2-U808 Hi-Fi Headphone Amplifier to see if the valves actually do anything. What is the circuit topology? E180F (6J9) pentode valve datasheet Doug Ford’s Microphone design series Playlist Reverse Engineering How-To video Forum HERE Podcast: Download

Dave further investigates the Varta 15 minute NiMH batter charger. Mixed signal analysis with the new Keysight 3000T oscilloscope, and current tracing with the TTI iProber 520 positional current probe And some more reverse engineering. Forum HERE Podcast: Download