[ICOM] IC-2KL / PS question.

[Dick Flanagan]

This just came through, Adam.

73, Dick

At 09:34 PM 10/13/2004, you wrote:
 >Hi Mike,
 >
 >With the step-start circuit, the 64000 uF 63WVDC electrolytic should do
 >fine. In fact, the regulation (and consequently the linearity) should
 >improve slightly.
 >
 >You may want to increase the dissipation rating of the step-start series
 >resistors if they show any signs of "cooking".
 >
 >Cheers for now, 73,
 >Adam VA7OJ/AB4OJ
 >
 >
 >-----Original Message-----
 >From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
 >Behalf Of Michael P. Olbrisch
 >Sent: 13 October 2004 16:11
 >To: _ICOM_list (E-mail)
 >Subject: [ICOM] IC-2KL / PS question.
 >
 >
 >Fellow ICOMers, I have a question.
 >
 >The main capacitor of my IC-2KL / PS is showing signs of decay.  It is
 >47,000 uf at 63 VDC, 85 deg C, 2-1/2 x 4-1/8 inches.
 >
 >ICOM no longer has that item.  An internet search shows a number of
 >capacitors listed that will work.  Unfortunately, there is always a snag.
 >Minimum order of $250, or currently out of stock, or none anywhere, minimum
 >quantity of 10 needed to produce.
 >
 >I have found a supplier who went way out of their way to look for me.  All
 >they came up with was 64,000 uf at 63 VDC, 85 deg C, 2-1/2 x 4-1/8 inches.
 >
 >I was worried that the much larger cap value might cause problems with the
 >inrush current.  In looking at the PS schematic, It has a soft-start
 >function consisting of two resistors and a relay.  I think it will handle
 >the cap just fine.  However, there is a ton of wisdom on this list and I
 >wanted to see if I am missing something.
 >
 >Input and constructive criticism welcome.
 >
 >GARY ???  <grin>
 >
 >Once in it, I do intend to replace ALL the electrolytics.  I have of can get
 >the others easily.
 >
 >Thanks Y-all.
 >
 >Mike.  KD9KC
 >
 >My E-mail address: mike2004 at elp dot rr dot com Ham Radio page:
 >http://www.qsl.net/kd9kc/ Gun page: http://home.elp.rr.com/elpasochl/ Dog
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 >
 >Member:
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 >
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 >
 >
 >
 >
 >----
 >Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net Icom Users
 >Net: Sundays, 1700Z, 14.316 MHz Icom FAQ: http://www.qsl.net/icom/
 >
 >----
 >Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
 >Icom Users Net: Sundays, 1700Z, 14.316 MHz
 >Icom FAQ: http://www.qsl.net/icom/
--
Dick Flanagan K7VC NV SM
E-mail: k7vc at arrl.org