[Amps] best deal for Mallory caps?

[Rich Hallman - N7TR]

I have six Titan 425's here and most Power Supplies have been upgraded
with the WD7S PS Board.  These work great and only takes a small bit of
moving some parts around in the PS to make these work.

http://home.earthlink.net/~wd7s/hv-2.htm

Some pics of the board in the PS enclosure...
http://hamradiomarket.com/articles/Titan%20P%20Hybrid.htm


73  Rich N7TR

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
On Behalf Of Pete Soper
Sent: Thursday, November 24, 2011 11:07 AM
To: amps at contesting.com
Subject: Re: [Amps] best deal for Mallory caps?

Thanks to KM1H and K0UYA for the advice. The form factor of the stock
caps for the Titan is the killer: very long and very narrow compared to
the "usual" for this capacity and voltage. I'm confident I could make a
safe outboard "capacitor box" bolted to the side of the current PS to
allow more available/affordable capacitors, but I have to weigh all the
factors, and $29 each at Newark may be a better choice. I don't know if
270uf/8 is sufficient vs 400uf/8 for an amp that can put out 1.5kw with
the figurative pinky finger of one hand. So I'm sure I want to stay with
400uf per capacitor, while also paying close attention to temperature
and rated life specs, ESR, etc. This is why I asked about a better deal
for *the specific Mallory (CD) capacitors* before exploring unknown
territory.

The Digikey price for these caps is $46 each, if they had them in stock,
which they don't. Mouser does have 15 in stock at $81 each. Other
suppliers I've found all over the planet have prices around $35 or more.

Anyway, I wanted to make sure there isn't a golden supplier hiding out.

Regards,
Pete AD4L


On 11/24/2011 11:26 AM, Carl wrote:
> Ameritron has a good price on their caps which are 270uF which with 8 
> is sufficient for good filtering. The new ones are half the height but

> still the computer grade type...about $13 iffn I remember.
>
> Carl
> KM1H
>
>
> ----- Original Message ----- From: "Pete Soper" <pete at soper.us>
> To: <amps at contesting.com>
> Sent: Wednesday, November 23, 2011 3:53 PM
> Subject: [Amps] best deal for Mallory caps?
>
>
>> I need several replacement caps for my Ten-Tec Titan 725, Mallory 
>> CGS401T450R5L (long/slim 400mf 450vdc/85c). Newark wants $29 each. Is

>> there a better deal available?
>>
>> Thanks,
>> Pete AD4L
>>
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