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    powering a cordless drill with PSU in drill press DIY build

    Prompted by several DIY builds on YouTube I decided that I should build a drill press. All the examples on YT used a budget commercial corded drill, generally single speed typically valued at about $50. I happen to have a 24VDC battery drill for which batteries are no longer available. So I...
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    14.4 V Lithium battery - re-purposing question

    I have a portable power tool battery, Lithium-ion, brand Einhell, 14.4V, 1300mAh. This battery, though maybe over one year old, has seen no use. The tool (drill) & original battery & charger are not compatible due to model/design changes . So I figured why not use this battery as the basis of...
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    240VAC Transformer based 12 VDC PSU - Problem

    Hello, I have just discovered that my "trusty" DIY PSU no longer outputs 12V. I see in fact about 0.5V The unit has been very reliable over the 6 year in intermittent operation; until now. I removed the cover & quickly found (under no load) the LM1085 IT-12 regulator (3A, fiixed 12V LDO output)...
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    ID glass cartridge fuses ???

    I am just putting together a fairly simple Power supply. 240VAC mains powered with DC - DC converter. Max output 24VDC. Max current about 5A DC. I have accumulated quite a number of glass fuses of various sizes. But now I come to choose the best rating & size for my job -Horror - I ca't read...
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    Hand solder of small SMT components

    I have just read a thread here on this very subject but then lost it. Anyway I wanted to ask more questions, The component I wish to solder to a prototype board is a 36 contact IC 5mm x 5mm. Linear LT3651 IUHE-4.2#PBF. The contacts are not visible from the top which surely presents a special...
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