Mark, I like the idea of a CD stack capacitor. I have lots of old CDs here
:)
Maybe you could sand the paint (and maybe the aluminum reflective layer)
off the backside and place a thin tin foil with the same dimensions as the
reflective layer? You'd leave a strap on one side to connect all layers of
the same polarity together and alternate the side the strap exits. Then
just build it layer by layer on the cd holder tube and connect each side
together.
Anyone knows how to calculate the capacitance for this?
On Fri, Dec 27, 2013 at 8:22 PM, Mark Olson <kc5gym@xxxxxxx> wrote:
> On 12/27/2013 11:48 AM, Reverend Fuzzy wrote:
>
>> As I was waiting for the end of this morning's, eh, constitutional, I was
>> thinking... I have a bunch of old CD's laying around... if I were to sand
>> the silver coating off, and glue 3 or 4 of them together, (properly
>> centered
>> of course), would it be suitable as the rotor in a rotary spark gap for a
>> low-power SG coil ???
>>
>> Has anyone actually tried this? Just a thought, so no biggie if it's
>> goofy.
>>
>>
>> Might work, but if you were to use them to interrupt the arc itself, I
> was told that it would just be a sireen.
>
> On another note, I once considered a stack of CDs as a capacitor, but
> never figured out a way to make the connections.
>
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