Component tester

Aka: Octopus, Curve Tracer, Analog Signature Analyser…

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Made from recycled 240Vac “wall wart”.

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Breadboarding the I/V circuit.

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Breadboarding the internal 1A fuse and led indicator circuit

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240V:10v transformer source and internals.

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Measuring out internals and laying out facia

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Making fuse & indicator pcb

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Backside

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All pcbs made and fitted

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Made some test leads, facia done with inkjet printer and laminated

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Compact, no mains leads hanging around…

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BNC’s are 50ohm, 4mm bananas, female pin header.

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Working well… seen testing an LED

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knoba – component tester front panel – 2016.dxf

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knoba – component tester schematic – 2016.fzz

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knoba – component tester front panel – 2016.dxf

knoba – component tester schematic – 2016.fzz

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