[Elecraft] K3 KBPF3 mod for LF questions

ejkkjh at gmail.com ejkkjh at gmail.com
Tue Jul 7 16:38:48 EDT 2015


Thanks Jim for help.  I tried the wax but my hands are not steady enough and eyes not good enough, could not get the small caps in.
Anyone know if this is an all or nothing mod, can I cut out the L1 and L2 and add the big cap without adding the small caps or must it all be done?
I guess I will ask Elecraft about sending the board to them for the small caps install or try to find someone local here in MD who can do it.  thanks 73
Emory  WM3M

From: Jim Miller 
Sent: Tuesday, July 07, 2015 3:05 PM
To: ejkkjh at gmail.com 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] K3 KBPF3 mod for LF questions

also don't try to keep you hands in position without support. always support your hands by your forearms on the edge of the worksurface or better yet with your wrists on something like bean bags closer to the work. stability rulz!

73

jim ab3cv

On Tue, Jul 7, 2015 at 3:03 PM, Jim Miller <jim at jtmiller.com> wrote:

  put a small bump of solder on one end of the existing cap. pick up the new cap with a toothpick that has been coated with a bit of beeswax from the sewing store.

  by just touching the toothpick to the top of the new cap it should adhere and allow you to gently place it on the existing device. heat the end with the solder blob to tack the new cap in place. solder the other end. reheat the first end briefly if necessary to make a nice joint.

  73

  jim ab3cv

  On Tue, Jul 7, 2015 at 2:56 PM, <ejkkjh at gmail.com> wrote:

    Received my KBPF3 mod kit for LF today. Caps are very small.  This might be my first SMD, at least this tiny, work.  With as big a magnify glass that I can find I can see the caps and after some effort get them on top of the existing caps but I can not get them to stay there.  I have tried every small tweezers I can find, even very small ones from a little Swiss army knife, no luck.  Any suggestions on how to keep them there would be appreciated.  Thank you  73
    Emory  WM3M
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