Finding a right cap?

[Scarr]

Can someone look at this PDF and advise on the 0.0047uf capacitor in the diagram, from what I know the symbol is for a electrolytic capacitor and I'm struggling to find one in such a small value.


https://www.electro-tech-online.com/custompdfs/2005/09/motionalarm2.pdf

Thanks

Steve

 

[Nigel Goodwin]

Can someone look at this PDF and advise on the 0.0047uf capacitor in the diagram, from what I know the symbol is for a electrolytic capacitor and I'm struggling to find one in such a small value.

There's only one electrolytic shown in that diagram, and it's 47uF, the 0.0047uF (4700pF) isn't electrolytic - the sole electrolytic is marked with a +.

 

[Scarr]

Thanks

You see I was just being an idiot, whenever I see the caps with a curved part I always think they are polarised and the ones with two straight lines are non polarised!!!

Thanks again Nigel.