Carl wrote:
> That sounds like a laser discharge cap or something similar. For amplifier
> filtering it should be limited to 2500-3000V and the case temperature
> monitored. There have been many reports of them failing when run at or close
> to the marked voltage, especially when they first hit the surplus market in
> large quantities in the early 80's. There has been much written up about
> them since.
>
> I have an identical rating/size cap that has run for over 25 years at 2500V
> and that PS is now powering a PP 810 modulator.
>
Modulator?...modulator... Didn't they find something like that from the
end of the Cretaceous era. Weren't they wiped out by a giant meteor or
comet? <:-))
What on earth are you modulating? Home brew, or boat anchor of what lineage?
Back in "the days" I always wanted a Viking Valiant with three plate
modulated 6146's. I don't remember what they used for a modulator. Of
course the "Desk Kilowatt" was always high on my list as well.
73
Roger (K8RI)
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: "Jack Parker" <vhfplus@gmail.com>
> To: "MIKE DURKIN" <patriot121@msn.com>
> Cc: "amps fourm" <amps@contesting.com>
> Sent: Tuesday, September 15, 2009 8:10 AM
> Subject: Re: [Amps] Query about capacitor value
>
>
>
>> It's pretty large...4-1/2 inches deep x 5-3/4 inches wide x 12 inches
>> high.
>>
>> On Mon, Sep 14, 2009 at 11:41 PM, MIKE DURKIN <patriot121@msn.com> wrote:
>>
>>
>>> What size is it??
>>> KC7NOA
>>>
>>>
>>>> I'd like some advice on the value of a high-voltage power supply
>>>>
>>> capacitor,
>>>
>>>> which I plan to offer for sale.
>>>> I have a 53uf, 5kv, oil-filled cap (no PCB's) sold (manufactured?) by
>>>> NWL
>>>> Capacitors carrying their part number 10208. I have looked at their web
>>>>
>>> site
>>>
>>>> but the cap is not listed but comparable parts in their product line
>>>> are
>>>> surprisingly expensive!
>>>>
>>>> Any input would be appreciated.
>>>>
>>>> 73,
>>>>
>>>> --
>>>> Jack, W6NF
>>>> Silver Springs, NV
>>>> DM09ji
>>>>
>>>>
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>>>
>>
>> --
>> Jack, W6NF
>> Silver Springs, NV
>> DM09ji
>> _______________________________________________
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>>
>
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