Capacitor size for coach led strip ?

[beavercreek]

so if there's any fellow Hams in here that have blown the sniffer diodes in there MFJ, I have some

Are they ones that detect the onset of man-flu???

 

[sparky230]

Fraid not it's the RF sniffer from this http://www.mfjenterprises.com/Product.php?productid=MFJ-259C

 

[beavercreek]

Oooh err

Out of my pay grade that certainly is ...... :-[

 

[PhilP]

Fraid not it's the RF sniffer from this http://www.mfjenterprises.com/Product.php?productid=MFJ-259C

? What does RF smell of ? ???

 

[beavercreek]

? What does RF smell of ? ???

Depends what the R and the F stand for............. a 'Real F*rt'...perhaps

 

[gregh]

Just a further aspect to consider.
If you are using caps in series, it's always a good idea to parallel each one with a large value resistor to ensure the dc voltages across each cap is substantially the same. Say 1M across each one.

Without these, the internal 'leakage' resistance of each capacitor (very, very large) determines the dc voltage across each cap. If one of the caps has only a 'very large' R , then it will have less voltage and the others will have more than their share, maybe exceeding their rating.

 

[beavercreek]

Greg, I am going for a 22000uf 25V cap that is 25mm in diameter as this will fit in the roof and not be seen and also give the required amount of 'anti-flicker'.
There will be two in parallel.