Wgtn meeting, Wed 21 Sept 2016

This coming Wednesday meeting promises to be rather different from usual. Arthur Harris is going to bring along and demonstrate 'an oscilloscope with a difference'. This isn't a big box with a built-in screen for displaying waveforms of different kinds but a small box that connects to a computer and allows waveforms to be displayed up to the size of the monitor. It also has a number of other features normally seen only on expensive  instruments. In addition, it incorporates a waveform generator which can be fed into electronic devices for checking functionality. The writer has a 70 watt class-D stereo amplifier that will be put to the test by feeding it with both sine waves and square waves at different frequencies to check out characteristics like stability. Arthur will also use it for checking out some of his own devices.
The evening will also likely include a discussion on internet shopping: what it entails, real costs and the risks involved.
If you are interested in a Skype link for the meeting, please ring 934-2816 (if you live in Wellington or its environs), or (04)-934-2816 (if you live up country, the Wairarapa or even the South Island) on Wednesday early afternoon to give us time to get you connected.
As usual, the meeting will be at Ron Oliver's, 39 Washington Avenue, Brooklyn, commencing at 7:30pm