From: chuck23@dejanews.net
On Wed, 4 Mar 2026 11:58:56 +0000, liz@poppyrecords.invalid.invalid
(Liz Tuddenham) wrote:
>Wu Ming wrote:
>
>> Liz Tuddenham wrote:
>> > Wu Ming wrote:
>> >
>> >> Chuck wrote:
>> >>> On Sun, 1 Mar 2026 09:21:20 -0000 (UTC), Wu Ming > >>>> wrote:
>> >>>
>> >>>> Hello,
>> >>>>
>> >>>> Bought second hand one year ago but according to serial code plaque
>> >>>> fabricated 11 years ago. My bread making Unold 8695 delivered good
bread
>> >>>> for more than one year now.
>> >>>>
>> >>>> Beginning with last week begun not switching on immediately. One minute
>> >>>> delay became one hour today. Text on the small display is clearly
dimmed.
>> >>>> Last week reset itself twice along the program. Eventually being able
to
>> >>>> complete.
>> >>>>
>> >>>> Producer amazingly has a spare ⤽power control board�. But
sales
>> >>>> ended in 2020 and part may be even older. I am not sure it would solve.
>> >>>>
>> >>>> I was thinking it may be an old capacitor. But I am not very good at
>> >>>> electronics. Suggestions? Thanks for sharing.
>> >>> Probably one or more electrolytic capacitors. Do you have an ESR
>> >>> meter?
>> >>>
>> >>
>> >> What is the useful shelf life of electrolytic capacitors?
>> >
>> > Sorry this isn't more helpful but - it varies from manufacturer to
>> > manufacturer, from type to type and from application to application.
>> > Sometimes their working life is specified at certain temperatures, but
>> > the relevant literature is not always available and shelf life is hardly
>> > ever mentioned..
>> >
>> > A capacitor that might last indefinitely as a decoupler in a pre-amp
>> > could fail rapidly if it were in a power supply with high pulse
>> > currents. Even if it started to fail, as a pre-amp decoupler it could
>> > degrade quite badly before any drop in performance would be noticed,
>> > whereas, in other parts of the circuit, any leakage would result in
>> > "noisy pots" or some other very obvious symptoms.
>> >
>> > Furthermore, a manufacturer with a good reputation might have an
>> > occasional dud batch or may be take over by bean-counters and start
>> > producing 'value-engineered' rubbish without any visual change in the
>> > product. It would only be much later, when things began to go wrong,
>> > that their reputation would be lost (and by then the bean-counters would
>> > all be retired with fat pensions).
>> >
>> >
>>
>> Well written and thanks.
>>
>> Any hint from my previous posts about why I am experiencing described
>> faults? Delay at powering on expanded from a minute to an hour after only
>> two use cycles.
>
>I am not familiar with the product but that time-scale suggests
>something like a memory battery or super-capacitor needing to charge up.
>Does it have a memory battery?
>
>If it hasn't got a battery, then a failed electrolytic capacitor would
>definitely be my next suggestion.
If you replace the capacitors, use 105C ones.
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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