[SCCC] Capacitors - Caveat Emptor

[Art K6XT]

Now that my internet is back on after yesterday's lightning storm....

Looking over the offerings I see these folks have some interesting 
components. However, what they do NOT have is any 500V, screw terminal 
radial electrolytics that will replace the caps on a Alpha 76 PS board. 
Or any other screw terminal caps at any voltage that I saw.

In my post I had disposed of the hackit approach. Could be done, to be 
sure, just not to my 76.

73 Art
> Today's Topics:
>
>    1. Re: Capacitors - Caveat Emptor (Richard J. Norton)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 29 Jul 2010 14:00:08 -0700
> From: "Richard J. Norton" <richardjnorton at gmail.com>
> Subject: Re: [SCCC] Capacitors - Caveat Emptor
> To: SCCC <sccc at contesting.com>
> Message-ID:
> 	<AANLkTimyCVWksp4Ua2w+jLY5QH0MtbR09StPzWJeaE3E at mail.gmail.com>
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>
> See
>
> http://www.apexjr.com/capacitorsR.html
>
> Replaced all filter capacitors with string of 330 uf 450 volt caps in
> a couple old amps like SB-220 a few years ago. They work fine.
>
> 73,
>
> Satisfied customer, Dick, N6AA
>
> On Wed, Jul 28, 2010 at 5:22 PM, Art K6XT <k6xt at arrl.net> wrote:
>   
>> Mouser just delivered me some 500V 240uF screw terminal electrolytics
>> for my Alpha 76PA. ?Your first question will be "why 500V?". Because it
>> uses a Peter Dahl 3CX800 transformer running about 2800V no load. Which
>> also enumerates why I needed new capacitors. The six 450V units took the
>> abuse for three or four years before spitting their guts on the PC board.
>>
>> So what is this. 500V caps of this configuration are apparently not used
>> much. Several suppliers list them, none of which except Mouser had any
>> in stock. Mouser had 5. Number 6 took 6 months for Mouser to get and
>> send to me.
>>
>> What gets me ornery about it is this. For the entire 6 months C-D had 5
>> units on a shelf in South Carolina. Could I interest anyone, cost be
>> damned, in snagging one of these for me? Will C-D sell direct to me at
>> any price? Despite numerous pleas, not a chance.
>>
>> The moral of my sad tale is this: If you plan (hi!) to blow up your
>> similarly situated amp, plan ahead ordering those caps!
>>
>> Yep. I could have hacked the ckt board to haywire in a seventh 450V.
>> Chose not to. Instead I bought a spare amp so I'd have a spare in the
>> event and also so I'd have an instant on. That three minutes has always
>> been a DX'ers bother.
>>
>> --
>> 73 Art
>> Allison, Colorado
>> "Whether you believe you can do a thing or
>> not, you are right." ?--Henry Ford.
>>
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>>     
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> End of SCCC Digest, Vol 91, Issue 22
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>   

-- 
73 Art
Allison, Colorado
"Whether you believe you can do a thing or
not, you are right."  --Henry Ford.