[sdiy] Preferred caps for polysynth recap ?

[Michael E Caloroso]

This comes up so often that I added it to my FAQ page

http://analoguediehard.com/faq.html#replacing-old-components

MC

On 4/10/16, Tom Wiltshire <tom at electricdruid.net> wrote:
> Whilst I agree entirely with Brian - the best type depends on the specific
> application, I'd like to propose a easier solution:
>
> Replace with the same type as what was there before.
>
> Modern caps of the same type almost certainly have a better spec than the
> ones they used originally, simply because manufacturing methods and
> techniques have improved significantly in the intervening decades, and this
> is especially true if you use some good quality parts and don't trim a few
> pence off the BOM, which mass-market manufacturers have been known to do.
> Plus you're replacing old with new, so it should be closer to its spec,
> since the old ones have likely drifted. Beyond that, anything else is
> gravy.
>
> Tom
>
> On 10 Apr 2016, at 21:23, rsdio at audiobanshee.com wrote:
>
>> In that case, the answer depends upon which caps you're replacing. Power
>> supply? Filter? Audio input / output?
>>
>> It really depends upon how the cap is used in the circuit - exactly - in
>> order to know which characteristics are important.
>>
>> Think about it: If there were one cap that was the best, no matter what
>> the application, then all other capacitor manufacturers would go out of
>> business.
>>
>> Brian
>>
>>
>> On Apr 10, 2016, at 12:43 PM, "Gil W." <gil_we at yahoo.com> wrote:
>>> It wasn't the question. The question was which type of caps are best to
>>> use.
>>>
>>> I recap - it's a fact.
>>>
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