Toronto, Ontario, Canada

Middle Path VCO

Building a PIC24F phase meter

Adjusting an MSK 007 Leapfrog VCF to its best possible operation involves a tricky process of feeding in a 740Hz sine wave and measuring phase differences between different test points. I also had reason to measure phase differences in my recent experiments on recognizing fake coins. Although my oscilloscope has a mode for measuring phase differences that works well enough, it can be annoying to use, and I thought it'd be a fun project to build a better tool. READ MORE

Tickling twonies with triangle waves

There's been a plague of bad twonies in Toronto recently. These are counterfeit Canadian $2 coins. They've been called "camel toe twonies" because one of the most visible features of the bad ones is that the right front paw of the polar bear on the reverse is misshapen, vaguely resembling the toe of a literal camel and not any other meaning of that term. READ MORE

Outrunning the Noise Bear

Somewhere in the far North, in fact on the North Coast, the Tenderfoot module was new in town, and a grizzled old A-110-1 was showing him around. As they passed the Rack Brute Saloon, the old timer warned the newcomer about the Noise Bear. READ MORE

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