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From: "Phil Allison"
Subject: Re: maximum reverse voltage allowed on electrolytic caps?
X-Newsreader: Microsoft Outlook Express 5.50.4522.1200
Date: Fri, 15 Nov 2002 10:14:40 +1100
NNTP-Posting-Date: Fri, 15 Nov 2002 10:04:51 EST
Organization: Telstra BigPond Internet Services (http://www.bigpond.com)
"Jim Yanik" wrote in message
> I've heard some interesting stories at TEK about poor build of some of
> their scopes and other instruments. I've seen scopes that came from the
> factory with trigger IC's installed 'upside down' or reversed,where the
> trigger could not even work,yet an inspector 'signed off' on the work.
> inspector and a few others lost their jobs as a result. I've even seen an
> instrument where a PCB had NO solder,components merely held in place by
> lead crimps from the automated insertion machine.It looked to have missed
> the wave soldering step completely! And it had worked for years!
** I did a little digging about the amp with the reversed electro in the
PSU by phoning the factory and having them check out the serial number.
According to them no such amp existed - it had never been sold to any
Methinks it left by the back door, was never used for 15 years then
when its temp had fallen enough to allow safe sale it refused to work.
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