[R-390] another C603/C606 replacement

[wli]

Rather than restuffing an old can or using an octal relay case, one can use a common pill container. In this version, the base is a dead octal metal tube. Just cut off the upper metal, and gut the interior, preserving the base and interior pins. The I.D. of a pill container is 2.11 inches, and the O.D. of an octal metal tube base is 2.11 inches. The fit is exact. The container may be secured using ¼ inch metal screws. The caps will fit in, but just barely. I got three 22µF in one and two 47µF in the other. 

W. Li