Reforming capacitors (technical description, not politics)

Robert Jarratt robert.jarratt at
Fri Jul 31 12:43:44 CDT 2015

> -----Original Message-----
> From: cctech [mailto:cctech-bounces at] On Behalf Of David
> Gesswein
> Sent: 31 July 2015 02:52
> To: cctech at
> Subject: Re: Reforming capacitors (technical description, not politics)
> When I reformed the 1967? capacitors in MARCH's straight 8 I took some
> showing the improvement in leakage and also measured capacitance and ESR.
> couldn't find original spec for the capacitor but the values seemed
> compared to datasheet for more recent capacitors.
> Graphs here.


>From the slides you posted it looks like you have some kind of automated set
up. Can you explain what you have there? The limited reforming I have done
has been done manually. I also notice that you reform over quite a few
hours, but those are big caps. Not sure I have seen any suggestions over how
long to reform for, and whether it is a function of the capacitor's nominal



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