Variable voltage DC power supply with ammeter.
thingiverse
I've always got a stash of spare parts from other projects lying around, and since I'm always on the lookout for a variable power supply, I figured it was time to get creative. So, I connected a DC-DC converter with a voltmeter that I'd picked up from Amazon, along with one of my trusty fixed DC power supplies, which just happened to be collecting dust in storage. This way, I could reuse what I already had and create a variable DC power supply that would serve me well for years to come. Below are the links where you can find these same components on Amazon: DC-DC Converter: https://www.amazon.com/dp/B0823P6PW6/ref=cm_sw_em_r_mt_dp_U_W.l.EbZ98EGP5 Voltmeter: https://www.amazon.com/dp/B07GFCVSYH/ref=cm_sw_r_other_apa_i_m8l.EbYSC44QP
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