[Amps] 811H pops fuses

Carl km1h at jeremy.mv.com
Mon Jan 20 20:37:16 EST 2014


Guaranteed Chinese, that fraud has been discussed elsewhere.

Carl
KM1H

----- Original Message ----- 
From: "Alek Petkovic" <vk6apk at bigpond.com>
To: "Tom Osborne" <w7why at frontier.com>
Cc: "Amps" <amps at contesting.com>
Sent: Monday, January 20, 2014 5:51 PM
Subject: Re: [Amps] 811H pops fuses


Found the caps I bought.

See Ebay item number 190875604650

73, Alek
VK6APK

On 21/01/2014 6:38 AM, Alek Petkovic wrote:
> Yeah, that's right Tom.
>
> Its the same with the AL-1500 model. More caps, higher voltage but they 
> are still right on or over the limit of 450V per cap.
>
> I changed mine for higher value, 500V jobs. I was able to fit 16 caps in 
> the space where the 8 originals were. They are arranged as a string of 8 x 
> 2 x 330uF/105°C caps in parallel. That's 8 x 660uF in series to give me 
> 82.5uF at 4000V.
> There was nothing wrong with the 8 x 220uF caps. I just got nervous 
> running them that high.
>
> I bought them from the US, on the bay. They are probably cheap charlie 
> ones but they do the job really well.
>
> 73, Alek.
> VK6APK
>
> On 21/01/2014 12:53 AM, Tom Osborne wrote:
>> Vic said:
>>
>>> Ameritron's prices are reasonable and they have shipped within a day 
>>> every
>>> time I've ordered parts from them.
>>
>> The problem is - the Ameritron ones are rated at 450 volts.  That seems 
>> like
>> they are operating at pretty much their max.  This one has about 
>> 1800-1900
>> plate voltage.  Four of the Ameritrons are 1800 volts rating (unless they
>> have a built-in safety factor).  73
>> Tom W7WHY
>>
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>

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