[Coco] [coco] video signal generation

[jdaggett at gate.net]

Y ou may want to consider changing the electrolytic to ceramic if the value is not 
to high.  Albeit somewhat expensive, ceramic caps to about 10 uF are available. 

james

On 4 Jan 2007 at 22:33, Gene Heskett wrote:

> But, I just had another ugly thought.  The gime is a cmos chip, and as
> such needs a seriously low impedance bypass capacitor right at its
> supply pins to give its best performance vis a vis rise & fall times. 
> If that capacitor was say a 1 uf or thereabouts electrolytic, there is
> no way in all creation that this capacitor is still good after what,
> 19 to 20 years?
>  The next time I have the top off mine, I WILL check that.  Anything
>  more
> than a few millivolts of noise there while its running should condemn
> that capacitor to the out bin.  I'd be tempted to replace it with a
> big low voltage paper or mylar of half a mic or so, which should last
> at least till the rapture.  Electrolytics in that position (or any
> similar such place in a circuit) are a ticking time bomb.