Aka: Octopus, Curve Tracer, Analog Signature Analyser…

~§~

Made from recycled 240Vac “wall wart”.

~§~

Breadboarding the I/V circuit.

~§~

Breadboarding the internal 1A fuse and led indicator circuit

~§~

240V:10v transformer source and internals.

~§~

Measuring out internals and laying out facia

~§~

Making fuse & indicator pcb

~§~

Backside

~§~

All pcbs made and fitted

~§~

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

~§~

Compact, no mains leads hanging around…

~§~

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

~§~

Working well… seen testing an LED

~§~

knoba – component tester front panel – 2016.dxf

~§~

knoba – component tester schematic – 2016.fzz

~§~

knoba – component tester front panel – 2016.dxf

knoba – component tester schematic – 2016.fzz

•••