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  • DIY Mini Lab Power Supply

    I've bought a number (way too many) of different types of DC-DC converters. If there is one thing I can say about them, they are all laughably over-rated for how much power they can handle. All of the ones I've bought are fine with tens of millamps out, but things fall apart after that.Having said that, the ones that I have which come with large heat-sinks as a fundamental part of the board are much better, and can handle a reasonable percentage of their stated load. I would recommend that anyone looking to buy a DC-DC convertor board in an application needing more than a few milliamps should only look at ones with large heat sinks. I don't have this specific one, but things that look like this are more likely to give out reasonable power (in my experience): https://www.banggood.com/G…

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    I've bought a number (way too many) of different types of DC-DC converters. If there is one thing I can say about them, they are all laughably over-rated for how much power they can handle. All of the ones I've bought are fine with tens of millamps out, but things fall apart after that.Having said that, the ones that I have which come with large heat-sinks as a fundamental part of the board are much better, and can handle a reasonable percentage of their stated load. I would recommend that anyone looking to buy a DC-DC convertor board in an application needing more than a few milliamps should only look at ones with large heat sinks. I don't have this specific one, but things that look like this are more likely to give out reasonable power (in my experience): https://www.banggood.com/Geekcreit-DC-6-40V-To-1_2-36V-300W-20A-Constant-Current-Adjustable-Buck-Converter-Step-Down-Module-Board-p-1203369.html?utm_source=googleshopping&utm_medium=cpc_organic&gmcCountry=CA&utm_content=minha&utm_campaign=minha-ca-en-pc¤cy=CAD&cur_warehouse=CN&createTmp=1&utm_source=googleshopping&utm_medium=cpc_bgs&utm_content=haosen&utm_campaign=haosen-ssc-ca-all-1210&ad_id=485504198106&gclid=Cj0KCQiA5vb-BRCRARIsAJBKc6J1EuQyXYOXM8JLMmL536Ya6jYLGLsZ-heUZkPTaD1cEx5EXn2eiM4aArVgEALw_wcB

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  • Extremely Loud Low Filament Alarm

    "Toss the magnet" ??! Insanity! ;-)

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  • Time and Date of Satellite Maps

    Your edit above says to subtract the eye height. As noted here, should you not add it?

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  • Table Saw Soft Starter With Option Output

    Yannick, can you tell me what LD1 and LD2 are for?Also, would this work with 230 @ 60 Hz?Thanks.

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  • For anyojne reading this in the future... I read the data sheet, following the wisdom from throbscottle above. However, what I found was that the spec sheet for my relay apparently showed extremal values. For example, the release voltage and operate voltage of my relay were considerably different than the "limiting" values in the spec sheet, so the values I tried first didn't work. Having said that, the information above was very valuable in finding a starting place and knowing how to proceed from there.

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  • Do you have suggested values for the capacitor and resistor in the very first circuit?Thanks.

    Thanks for the response!

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