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Re: [Amps] Source for plate xfrmer

To: amps@contesting.com
Subject: Re: [Amps] Source for plate xfrmer
From: "Vic, K2VCO" <k2vco.vic@gmail.com>
Reply-to: k2vco.vic@gmail.com
Date: Wed, 15 Feb 2012 15:21:21 -0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
What would be the point of using it in an amplifier power supply? An arc 
would turn tubes (etc.) into plasma. It's like using a howitzer to go 
dove hunting.

On the other hand, if you are building a Death Star it would be a good 
start.

On 2/15/12 1:32 PM, Rob Atkinson wrote:
> Yes it's shorted.  It's one of those Maxwell energy discharge caps
> which means it has to be derated to 6 KV for WVDC.  I bought it on
> eBay in a Gov't auction.  I know from a friend's experience that
> insane amounts of filter capacitance like that can't be brought up
> with a single step start unless you want melted relays.   It has to be
> ramped up slowly over a 30 to 60 second period.   I have to not only
> work out a good bleeder system but also a way to tell whether or not
> the bleeders in service are functioning and have redundancy.   IF I
> actually use it.
>
> Dave, what would YOU do with it? : )
>
> 73
>
> rob
> k5uj
>
>
>
> On Wed, Feb 15, 2012 at 11:21 AM, Mike Andrews<mikea@mikea.ath.cx>  wrote:
>> On Wed, Feb 15, 2012 at 05:01:22PM -0000, DAVE WHITE wrote:
>>> I can just picture the crater where St Charles, IL used to be if you
>>> discharged that beast!  Where on earth did it come from?  If you weren't so
>>> far away I'd be asking you if it was for sale....
>>>
>>> Dave G0OIL
>>>
>>> ----- Original Message -----
>>> From: "Rob Atkinson"<ranchorobbo@gmail.com>
>>> To: "Carl"<km1h@jeremy.mv.com>
>>> Cc:<amps@contesting.com>
>>> Sent: Wednesday, February 15, 2012 4:19 PM
>>> Subject: Re: [Amps] Source for plate xfrmer
>>>
>>>
>>>> I have a 10 KV 200 uF oil cap weighs 175 lbs and that's why I'm
>>>> hesitant to use it.
>>
>> Hmmmmm ... .5 * C * V * V
>>            .5 * .0002 * 10^4 * 10^4
>>            10^-4 * 10^4 * 10^4
>>                    10^4 Joules.
>>
>> That's ... hefty.
>>
>> You do keep it shorted when not in circuit, *YES*?
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-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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