[CQ-Contest] Fw: Bandpass filter

[Guy Olinger K2AV]

I see the current max data on the pdf pointed out to me, but more spec
sheets seem to have no data on current data.  Does someone know of a
listing for 5 or 10kV QRO caps with current ratings?  73, Guy.

On Mon, Jul 9, 2012 at 5:24 PM, Jukka Klemola <jpklemola at gmail.com> wrote:
> They are in practise as good as the original capacitors but now there
> are three capacitors in parallel instead of two in the priginal
> design.
>
> 73,
> Jukka OH6LI
>
> 2012/7/9 Guy Olinger K2AV <olinger at bellsouth.net>:
>> 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
>>>
>>>
>>>
>>>
>>>
>>> -----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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>>> .
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