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User talk:Daveb: Difference between revisions
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* [http://uk.farnell.com/vishay-general-semiconductor/mss1p3u-m3-89a/diode/dp/1863334 1a, 160mV fwd voltage drop, 30v max reverse voltage] £0.154 - however this wonder component is US stock, so £16 extra charge! (there are a few similar low voltage drop diodes and they are all US stock). | * [http://uk.farnell.com/vishay-general-semiconductor/mss1p3u-m3-89a/diode/dp/1863334 1a, 160mV fwd voltage drop, 30v max reverse voltage] £0.154 - however this wonder component is US stock, so £16 extra charge! (there are a few similar low voltage drop diodes and they are all US stock). | ||
** The Datasheet says the VF Max is 0.4V - crap ! | ** The Datasheet says the VF Max is 0.4V - crap ! | ||
== light sensor == | |||
All the Farnell photo-resistors are through hole; makes sense I guess as that way they can be poked through a hole in the casing. | |||
* [http://uk.farnell.com/excelitas-tech/vt90n2/ldr-series-vt900/dp/1652637 photo-resistor or LDR ] is cheapest at £0.27 - now to find out how to use it, and if there is a reason to spend more. | |||
== 20V, 30V or 60V diode bridge. == | == 20V, 30V or 60V diode bridge. == | ||
