Catwalker

Here is what LTSpice says the response should be...

Not that different from what you see on the scope in the previous post.



















Of course, LTSpice assumes perfection in everything from parts values to wiring to solder joints...

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So, I asked if anyone could figure out my next project...

Corrected schematic:

Sorry that the connectors are not
quite right, couldn't find any Ac wall
plugs or line cords in Kicad...

Here's a PCB layout...
What is it?



Anyone guess?

 Board etched and tinned, a
coil off to the side...

(Along with my reading glasses, I hate getting old(er)  ;) )









Circuit board complete...







Any ideas yet?



Box with two of the coils mounted...

10 uH each (approximately)

Box is 10" x 10"










Almost there...

Some pretty thick wire...











Generating a signal into the input
and watching the output on a scope.

Input starting at about 100 Hz
and sweeping to about 100 Khz

Here it is...


What is it?

A Brute-Force Line Filter,
Containing a common mode choke.
Hopefully, to help deal with the
cheap switching wall warts which
pollute the airwaves so much. :/



On to the next project (circuit board with toner layout in the last shot.)


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