QRP and Youth

Part 2

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The universal test-board use the non-soldering-contact-field, we finished three boards for our children-radio-group

 

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Jenda tests his first power supply on the universal board

 

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Jenda is finishing his power-supply, the basic apparatus of his home laboratory

 

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The supply is complete, this is the start of his life-coming

 

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The oscilloscope demonstrate the ripple effect in depending of the consumption current

 

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Three power supplies are finished now, every gives 5 to 14 Volts, 1,5 Amp. max.