Dave investigates an issue with the input offset voltage on the Analog Devices AD8628 zero-drift chopper opamp. The answer will be presented in the next video. Chopper Amplifier video HERE Forum Topic HERE Podcast: Download

Inside the GW Instek GDS-2000A series oscilloscope. Datasheet links: http://www.ti.com/lit/gpn/adc08d500 http://www.ti.com/lit/gpn/lmh6518 http://www.analog.com/static/imported-files/data_sheets/ADCMP567.pdf http://www.analog.com/static/imported-files/data_sheets/AD8370.pdf http://www.analog.com/static/imported-files/data_sheets/AD8009.pdf http://www.analog.com/static/imported-files/data_sheets/AD8000.pdf http://www.analog.com/static/imported-files/data_sheets/AD9834.pdf http://pdf1.alldatasheet.com/datasheet-pdf/view/151684/GSI/GS88036BGT-333I.html Forum Topic HERE Podcast: Download

Over an hour of Dave unboxing the new GW Instek GDS-2000A series VPO oscilloscope, and first impressions on trying to use it. Some comparison to the Rigol DS2000 series are also made. This is a not a proper considered review, it’s just a hack’n’slash at playing around with it out …

Dave explains the Dickson Doubler building block circuit. a.k.a diode charge pump. Use a spare microcontroller pin, some diodes, and capacitors to create a useful voltage doubler or voltage multiplier. Podcast: Download

What’s inside the JBC CD-2BB soldering station. http://bit.ly/180GwAP http://www.mektronics.com.au/ Forum Topic HERE Podcast: Download