[Amps] 811H pops fuses

[Alek Petkovic]

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
>
>
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