----- Original Message -----
From: "Roger" <sub1@rogerhalstead.com>
Cc: "amps fourm" <amps@contesting.com>
Sent: Tuesday, September 15, 2009 12:03 PM
Subject: Re: [Amps] Query about capacitor value
>
>
> 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
Homebrew amps Roger. I have 2 Hallicrafters HT-9's, plus a Viking 1 and II
CDC as exciters. The PP 810's are for the small amp, a pair of HK-354's. If
Im going to deal with dinosaurs they might as well roar like them.(-;
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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