Re: S-4 issues
Chris van Lint
Hi Jim,toggle quoted messageShow quoted text
Great!!! I was going to suggest checking out the tants, as I know that they have habit of going bad and shorting. I have not used any of the 7S11 gear for over 10 years. I still use my 7L13 and last year it went up in smoke. The beauty is that often the culprit can be identified visually. Anyhow, to be on the safe side I replaced all tants and presto it is running fine.
I am somewaht better, no more pain. However I am still not allowed to hold my head up and have to sleep on my tummy for at least another week. This why I now can use my note pad (not a PC screen).
At that time I will know to what extent the sight in my left eye has been saved.
Glad that all turned out well.
Sent from Samsung tabletJim Ford <firstname.lastname@example.org> wrote:Yea! That was indeed the problem; 3.3 uF tantalum C45 on the preamp
board was shorted, pulling +15 V down. I replaced it with the closest
value I had, 10 uF, and now it works! I considered putting another 10
uF in series, but there really isn't room for two caps.
------ Original Message ------
From: "Craig Sawyers" <email@example.com>
Sent: 9/15/2018 3:07:34 PM
Subject: Re: [TekScopes] S-4 issues
So, I have two S-4 sampling heads, one of which works fine, and theThe bridge diodes are not tunnel diodes - they are conventional low
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