With a 4k1 collector resistor and 16mA drive into the led, the chosen (read ‘cheapest on ebay’) 6N135 is supposed to beat 1.5μs for both turn on and turn off, with typical figures of 90ns and 800ns.

Ugonna Victor Emeka-Inegbu spent part of his summer helping a Wisconsin manufacturer build a better welder thanks to a journey that started with a trip through a registered student organization.

【WWW.HUOHUTIYUBISAIDENGLURUKOU.COM.CN】63、 rén bìng bú shì zài yǒu shí jiān shí cái péi yǎng nài xīn ； zhèng què de guān niàn ...

It suppresses dendrite growth and boosts energy density to nearly double that of today’s lithium-ion cells—promising safer, ...

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Beijing has taken countermeasures in response to the Dutch government’s actions Read more at The Business Times.