[R-390] AF Caps

[richard may]

   Here  is  another ways to do it.  Carefully peel back the crimp on the
   bottom  of  the  can.  Clip the wires and remove the tar and old caps.
   The best way I have found is after removing the base, boil the cap  in
   water. You will have to dig out the mess. Once the can is clean, drive
   the  old  pins  out,  working  from the bottom of the socket. . A wood
   board  with a hole drilled in it makes it easy. Lay the socket  on the
   board  so  that  the  pin  will  go into the hole as you dirve it out.
   Replace  the  pins  with number 10 copper wire, leaving the ground pin
   just  long  enough so that when the can is replaced, the wire will not
   short  to  the  can.,  This wire is the "piller" on which to mount the
   other  caps. The other pins can be shorter. Once you have the new pins
   in place  use  epoxy  glue  on  the  cap  side  so that they will stay
   in place.   Solder  the  new caps in place vertically. Replace the can
   and carefully bend the crimp back into place.

   Sprague  has  available  replacement  axial lead caps that will fit in
   either  the  45  or 60 mfd can. I don't remember the part number but I
   know  that  Newark Electronics and probably other major suppliers sell
   them.

   A  word  of  caution. DON'T plug the can into the AF deck with uncured
   glue.  I did this and found out too late that the new copper pins slid
   up  into  the  can. The second set I rebuilt, I made the pins a little
   long and clipped them to size once the glue was set.

   Good luck, I't not as hard as it sounds.

   Richard May, W8FCW