[Milsurplus] re-stuffing plug-in electrolytic cans

[Bruce Gentry]

There are fluxes and pastes for soldering aluminum. I have need to 
rebuild several plug in condensers, and that may be the answer. I 
sucessfully soldered to aluminum IF transformer cans by sanding them 
bright, immediately covering the cleaned area with  oil, then melting a 
puddle of solder  on the aluminum and using a small fiberglass brush 
through the puddle to scour off the oxide. If you use the fluxes or 
special solders, be sure to scrub all the flux residue off with hot 
soapy water, it is definately conductive.

      Bruce Gentry, KA2IVY


On 7/20/18 4:59 PM, Nick England wrote:
> I need to re-stuff some multi-section octal plug-in cans. Removal of 
> the guts went OK.
> On the interior the plug-in pins are aluminum crimp connections to the 
> old capacitor sections, so I can't solder the new caps there.
> What have others done to re-cap these military caps?
>     Used a new solderable octal plug connector base (not the right size)?
>     Crimped to the aluminum somehow?
> The external plug-in pin is solderable - I am thinking about drilling 
> a hole in the base to run a wire through and solder at the top of the 
> pin. Has anyone doe this? This is evidently standard procedure for 
> recapping the solder-tab type caps.
>
> I guess I could just forget the cans/plugs and run leads from the new 
> caps through the octal socket and solder in place that way. But that 
> is so ugly.....
> Other suggestions welcome.
>
> N.B. I usually reform electrolytics, but these 3 plug-ins have 
> corroded at the base and dried out. And there ain't no room under the 
> chassis for 9 new caps.
>
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.com>
>
>
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