[Milsurplus] re-stuffing plug-in electrolytic cans

[Peter Gottlieb]

It's very satisfying to get solder to wet aluminum.  I've found it can take a 
powerful and hot iron as aluminum also conducts heat away rapidly.

On 7/21/2018 12:58 PM, Bruce Gentry wrote:
>
> 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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>
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