[CQ-Contest] Fw: Bandpass filter

[Guy Olinger K2AV]

I don't see anything in the documentation about the current carrying
capabilities of these.  Did I miss something?  73, Guy.

On Mon, Jul 9, 2012 at 9:39 AM, Dave Hachadorian <k6ll at arrl.net> wrote:
> Yesterday (email below) I recommended some capacitor replacements
> for the ICE 419 bandpass filter box.  I see that Mouser now
> carries a decent stock of the CDV16 series of capacitors, which
> should be even better for this application.
>
> I would replace the 10 meter caps with THREE of these:
> http://www.mouser.com/ProductDetail/Cornell-Dubilier/CDV16FF181JO3/?qs=tNDx7qEChkdVeXCTyip0gJ%2fmhJL9ji8%2f8EI0jS5RcxY%3d
>
> Replace the 15 meter caps with THREE of these:
> http://www.mouser.com/ProductDetail/Cornell-Dubilier/CDV16FF221JO3F/?qs=tNDx7qEChkcTDRralVBIS8sa%2ftpHGOIpu6bFpqfKA4o%3d
>
> Thanks to K1TTT for pointing out the advantages of the CDV16
> series.
>
>
> Dave Hachadorian, K6LL
> Big Bear Lake, California
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> -----Original Message-----
> From: Dave Hachadorian
> Sent: Sunday, July 08, 2012 1:07 PM
> To: Keith Dutson ; cq-contest reflector
> Subject: Re: [CQ-Contest] Bandpass filter
>
>> I use the ICE 419 banpass filters... Ten meters is by
>>far the most vulnerable section.  I have a large supply of 270pf
>>500v silver
>>mica caps on hand to make repairs.  Two of these caps are wired
>>in parallel
>>to get 540pf for the tank circuit.  If I could find caps rated
>>at
>>1000v, I
>>would use them.
>
> It's the current, not the voltage that causes capacitors in the
> ICE filters to heat up and change value.  The ones that fail are
> the caps that go to ground on the radio side (not the antenna
> side) of the pi-net.  I helped a friend service his unit, and we
> replaced the 10 meter caps with THREE of these:
> http://www.mouser.com/ProductDetail/Cornell-Dubilier/CDV19FF181JO3F/?qs=tNDx7qEChkfCDH5GStQHlaNECvkBqF%2f36Qk9E0aHa4Q%3d
>
> We also replaced the 15 meter caps with THREE of these:
> http://www.mouser.com/ProductDetail/Cornell-Dubilier/CDV19FF221J03F/?qs=xO%2fDY4w9KHXzyyfzgPGBl2oCX1GQe4%2frV%2f%252bpZRIlAxM%3d
>
>
> Dave Hachadorian, K6LL
> Big Bear Lake, California
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