[Coco] NitrOS-9 newbie needs some help

peak at mail.polarcomm.com peak at mail.polarcomm.com
Thu Aug 26 15:05:02 EDT 2004


All Electrolytic Caps in all electronic equipment deteriorate 
with time!!
Eric


---- Original message ----
>Date: Tue, 10 Aug 2004 11:51:42 EDT
>From: KnudsenMJ at aol.com  
>Subject: Re: [Coco] NitrOS-9 newbie needs some help  
>To: coco at maltedmedia.com
>
>In a message dated 8/9/04 3:27:08 PM Eastern Daylight Time, 
>boisy at boisypitre.com writes:
>
>> Since we're on the topic of flaky CoCos, here's a question 
I have: is 
>>  it possible that, over time, electrolytic capacitors in 
CoCos will dry 
>>  up and loose their ability to hold charge effectively?  I 
know this can 
>>  be an issue with older monitors.  What about gradual 
failure of other 
>>  components (resistors?).
>
>Electrolytic caps (used in the power supply) will dry out 
and lose 
>capacitance, or, in really old equipment, develop leaks or 
even shorts (verrrry bad!).  
>When fixing up pinball machines from the 70s and 80s, caps 
are often replaced 
>just as a matter of course.
>
>Nowadays some pretty cheap multi-meters will measure 
capacitance, so you can 
>check your caps -- may have to disconnect one lead form the 
circuit to be 
>accurate.  Caps are cheap, easily available where you bought 
your Coco (!), though 
>getting the right size and fit to look like the original is 
probably not an 
>option.
>
>Slightly larger (like double) values or working voltages are 
OK.  Less is not.
>--Mike K.
>
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