 | Steam-powered railroad snowplow, Truckee California |
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 | Photodiode Preamplifier |
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 | Bent Icicles, Truckee, California |
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 | On the Harry Steps in San Francisco. I counted 237 between Laidley and Beacon Streets. |
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 | Breadboarding with PHEMTS and Eclips Lite logic. Hacked copperclad can make circuits that run at GHz speeds, risetimes below 100 ps. This one makes a pretty good 5-volt, 1 GHz square wave.
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 | Some Philbrick opamps |
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 | Old transcontinental railroad tunnel, near the China Wall and the old Lincoln Highway |
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| Market Street, San Francisco |
 --- | Rainy day at work, with lighthouse |
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Energy Sensor Module PC Board Layout in PADS LTC2242-12 250 MHz 12-bit LVDS ADC near center, Altera Cyclone FPGA below |
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 | TDR deconvolution program. This evolves a filter that turns an ugly TDR step into a pretty one. |
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