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DIY adjustable power supply kit, 110V input, 1.25-12V output, for electronics learning and welding practice.

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lm317 Power Supply Voltage Regulator kit DIY Electronic kit Set 110V to DC1.25-12V Voltmeter Welding Training
lm317 Power Supply Voltage Regulator kit DIY Electronic kit Set 110V to DC1.25-12V Voltmeter Welding Training
Output voltage:1.25-12V output current:200mA input voltage:220V Transformer power:2.5W power cable l..
US$7.99
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